Amazing Slow Downer App Reviews

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Worked great for years and now has stopped with little support. I have used this app for years and it has worked wonderfully, but it within the last month it has stopped opening mp3 songs that I’ve downloaded. I brought this to the attention of support who told me to just turn off my phone and turn it back on, lol. This did not work. I deleted the app and re-download it again and still not working.

Amazing App!. The app existed for years on the pc platform, I used it for a decade to help learn guitar licks. About a year ago I learned that they ported to iOS and I downloaded it immediately, as I’m now learning drums. This app is invaluable not just because it has the same functionality as the desktop version — it has even more functionality AND it’s portable! The only function missing from the pc version on this app is the ability to mute the frequencies where the vocals reside, but that’s a minor sticking point.

Easy 5 stars. This app is more than worth the price. As a classical musician, it’s helpful for slowing down recordings and backing tracks for practice. The export function is also super useful so I can take adjusted tracks and put them into GarageBand for recording projects. 10/10

Must-have Tool for Producers and Songwriters. I’m a music producer and songwriter. ASD is an excellent tool to organize bounces of mixes/songs I’m working on. I’ll airdrop an MP3 to my files folder on my phone, and then I use ASD to access it while I’m on the go to listen in different keys, tempos, and select specific loops. I use this app literally every day to listen to things I’m working on. iTunes would not do the trick, it’s not as seamless and doesn’t have the functionality I need. Thanks so much for making such a great product!

As advertised!. Great for slowing down difficult percussion passages. Some distortion is present at very slow speeds, but it's still completely workable. Didn't read all other reviews, but if you come across a "protected" file that won't import - there's a way around that too. ————- Checking back in on this app in 2018. I’ve used it religiously for the past 6 1/2 years and it is STILL amazing. Someone complained that it was too expensive at $15 (a few years ago). Are you kidding me?? For the serious musician that works at getting things right, this app is priceless. Given the amount of use, time saved, and difficult passages learned - I would in retrospect have gladly paid $50 for this. Regular updates keep it working smoothly. I also dislike that it won’t import protected songs from iTunes (which I HAVE paid for). Not the app designer’s issue - it’s Apple’s. But you can simply burn the songs you want to slow down onto a CD as a regular mp3 file, then import that version into your ITunes and import it into ASD. It’s an extra step, but again, if you’re serious, it works and is worth it. THANK YOU, app designer - this has been a godsend!

I just like slowing down music. I am not a music teacher or musician, but I’ve always like slowing down music to get different chords. It’s nice that this app lets me do that. Too bad this app doesn’t have a karaoke function. You can’t have everything.

Great...when it works. It would be lovely if an app I payed $15 worked reliably! No such luck with this one. When it works does exactly what I wanted (except for letting me play the music I own in iTunes since I’m not paying an additional $10 a month for Apple Music). It runs on an irregular schedule of not functioning, and has left me in the middle of teaching dance classes with no ability to slow down the otherwise too-fast music I was using

Still a great app. First of all, thanks for supporting this app for as long as you have. I have both iOs and the PC version and find them invaluable. Keep supporting it and making it better!

Possible update. I love the amazing slowdowner app. I use it for my clogging studio and it’s easy to adjust the speed to dance to the music. I would like to add a suggestion of a (+) or (-) button option on the sides of the speed. Sometimes it’s hard to adjust the speed by just 1% without the speed moving too fast or too quick. Having a button that we could use to adjust it by 1% by tapping it would help a TON!!

Speed is not working. I love this app but the part that’s not working is the whole point of the app. The speed bar does not affect the song whether I slow it down or speed it up, the speed stays the same. I’m trying to learn jazz/blues improv and need to be able slow some sections down so I hear the exact notes being played. Please fix this!

NYC Violin teacher here, uses frequently. I am violin teacher and I use and recommend this app a great deal. However, there is one thing I would really love if the developers would consider (which would make this a 5-star review) and that is a way to adjust speed percentages by + or - 1 with the tap of a +-1 button just like you can with moving forward or backward in seconds. I would also love love love if you could either modify the small movements back & fwd or have more options available to do so (e.g. 5, 10, 15 seconds.) It would also be out of this world if you could develop place markers or tabs for points of difficulty that you could just jump to go practice. E.g. One at 1:36, one at 2:30, one at 14:53, etc. (Also would be great for jumping to the next movement in classical music). That being said I will continue to use this app and hammer on the << or >> 1 second button until this feature (hopefully) comes out. I haven't tried other similar apps (if they exist) but this one has been great to me, so am true blue all the way. Highly recommended. Get it.

Excellent app. This is my go to app for learning/transcribing music. Easy to use. Love the eq options to pull out each aspect of audio. As I am always on the move I would like to see a built in keyboard option so I can work anywhere without having to be in front of a piano.

Wonderful program!. I’ve been using it for years now and it keeps getting better. I’m able to reverse engineer songs by slowing them down and creating smaller loops, learning portions at a time then piecing them together through practice, gradually increasing speed as my muscle memory kicks in at each plateau. I play the diatonic button accordion Tex-Mex, Nortena, my own tunes. It also helps me with piano. Love it!

Still great after all these years. The first version of Amazing Slow Downer that I bought was on a floppy disk and ran on my Windows 95 computer. The software was great then and the iOS version available today is even better! Thanks for continuing to develop this useful tool for musicians.

THIS IS AS CLOSE AS YOURE GONNA GET. ok so how many of these have you downloaded just to be told you cant use apple music songs? well this works, only it meets you half way. no pitch or eq adjustment of apple music songs but the slow down sounds INCREDIBLE. any music file will load. the looper function is great because it can gradually get faster every few repeats which is perfect for learning new riffs. but yeah the algorithm for speed is a solid 10/10, while the pitch adjustment is more like an 8/10, which is still better than most. its worth the 15 bucks for the pro version. it works so smoothly and only looks kinda dated. a new updated UI would be nice.

Simply Amazing. As a lifelong cover musician who has always played by ear, my life has always involved tuning my guitar to whatever tunings the original artist used. Not a huge hassle, but not hassle-free either. The Amazing Slowdowner has changed the game for me. I only wish this technology had been available when I was in my 20s, but I’m sure glad to have it in my 50s. This app not only allows you to slow music down to the extreme for the purpose of learning, it also allows you to tune the source material to your guitar, rather than tuning your guitar to the source material. Playing in a band that typically detunes guitars by 1/2 step, this feature is extremely handy. And while similar technology has always suffered from digital artifacts when using time compression/expansion or de-tuning algorithms, this app suffers very little digital artifacts distorting the sound. Tuning a whole song down a half-step produces a high enough quality source audio file, that you can use it over a PA as an intro with no real noticeable drop in audio quality.

Must have app for guys (and gals) like me! 😎. This is easily one of the most useful apps I have purchased for learning tunes. I originally purchased this primarily to slow down songs but I now use the pitch option almost as much as I use the slow down option. I wish I had a looping option back in my youth rather than having to pick up and drop the needle on the record over and over. Great app and I have had absolutely no issues on my iPad or MY iPhone.

Was Student, Now a Professional Musician. The Amazing Slow Downer completely transformed how I approach and study music. I’ve been using it for several years now, and it’s accelerated my learning to such an extent that I’ve been able to become a professional musician. I’ll never be without this incredible tool!! Thank you!!!

It truly is Amazing!. I think this is the first review I have ever written. Normally I wouldn’t go out of my way, but this app has truly revolutionized the way I teach and practice. Everyone who plays an instrument needs this app! Also, a couple of days ago, I was having trouble with the app, which was probably due to Spotifys servers being down. I emailed the company and got a quick response and shortly the problem was fixed. It was at that moment, I realized how much I depend on this app! Worth everything you pay and more!

Was Amazing. I feel bad for the dev as I know how Apple can change things under devs’ feet. I bought this because it worked with Apple Music. Please contact Apple Developer Relations and make your case as why they should restore old functionality or hack in a fix.

Trumpeter transcriber from solos to horn parts. This is an awesome app, everything I needed and more. Cutting my transcription time 3 fold. I would have rated it 5 stars only for the problem Apple created with its MP4 proprietary crap not allowing music you've purchased through them being used with ASD. I hold Apple/iTunes the blame for this. I paid for the use of the music I should be able to use it as I please. I've sent the request as ASD suggested to Apple requesting they allow ASD access to iTunes purchased music!

Weird problem. I thoroughly rely on this program for school, and I paid for the license on iPhone, but for some reason it started only allowing me to hear three minutes of a song, as a week ago I could hear 6 minutes. Who do I contact about this and how do I resolve this problem?

Awesome support! Todo muy bien!. This app works great for me so far. The help screen features an e-mail option. My questions were promptly and concisely answered. If you need a tool like this, buy this app. I really like the ease of use. At first, I needed to re-start my iPad to access my purchased songs. After re-starting, everything works great and no crashes yet. I love this app and the price is fantastic! Thank you for such a useful music tool.

Speed. I purchased this to be able to slow songs down without changing the pitch. Apparently that can not be done anymore when using apple tunes. You use to be able to but not anymore. Is there a reason why this is now happening?

Many uses. This app is so awesome for practicing and learning new parts. I remember the old days when you had to slow a tape down the transpose back to the correct key. No more of that with ASD. Even at 50% sped it maintains the original pitch. You can adjust the tonal settings to highlight the instrument your trying learn in the mix. Once you get the hang of it it’s super easy to set a loop to repeat over and over in perfect time. Another great use is finding a few bars of a drum part from a song you’re learning and looping it to practice over. Once you get the section of whatever you’re trying to learn dialed in you can save it and open it right back up where you left off. Finally, being able to open tunes from your iTunes library is amazing!! (This wasn’t so easy in earlier versions). I soooo wish I’d had this app when I was a jazz sax major in college trying to transpose recordings. I love everything about this app.

Daily use as a guitarist!. This app is simply ... “Amazing”. I use it constantly to slow down difficult Guitar passages AND then loop them so I can practice long or short sections. It is perfect for learning solos or riffs with difficult timing. The sound quality is terrific though (as another reviewer mentioned) some distortion becomes audible at very slow speeds, but it is not intense distortion and doesn’t prevent hearing what you are trying to learn. Because I am using either MP3 or AAC, I’m sure the distortion is due to file compression. Having said that, there is zero doubt that I am a better guitarist because of this app. I would buy it again in a heartbeat due to its ease of use and solid feature set!

Best of the best. This software is unquestionably the very best that I have ever used to slow music down and change the key. It has at least tripled my ability and speed to learn new fiddle songs. I learned of this software when playing in NY from a musician who worked for Fender. He said it was his best kept secret as a session musician. I’ve tried others, but this one is the best by far for me.

Best tool ever. I’ve used this app to learn a ton of songs. I’m a professional singer, musician and actor and this has served me very well. Perfect for singers who need different keys than the originals, and also to learn the words. I like to speed each song up to practice the lyrics faster so that when I sing it at tempo I can think faster than the words. If you’re looking for a tool to practice songs as a singer or instrumentalist, there’s no better app to do it. I never leave reviews. This one is special. Also, to the developer, please don’t ever abandon it, I need it! Thanks!

Last update is terrible!. This app is amazing! As a Jazz educator/performer I use and recommend this app all the time! This last update completely broke the app. Even though I pay for Apple Music I cannot use the option of the app. So what is the point of purchasing the app? I paid for the app, I paid for Apple Music… why I can’t use the app? Horrible update!

Great App, missing slow down speed. I’ve used this thing for months now and it’s super helpful. Now that I have an iPhone tho, I can’t shift the speed and pitch when I connect to my Apple playlist. It’s fine when I learn worship songs, but it prog metal songs are impossible to learn without speed shift

Amazing technology. You can’t judge an app by its user interface. Not to mention the user experience is pretty solid especially for such a difficult conceptual notion. But most impressive is the apps ability to slow down a song without changing the pitch. I’ve tried many apps , including various mixing software and they don’t even come close. This app is a blessing for my life.

The Best Practice Tool Hands Down!!!!!. This is the best practice / jam tool! I use it all the time! I have had this for years and it still does everything I need it to do. Wanna jam along or learn a Van Halen, Jimi Hendrix, or SRV tune and don't want to tune down a half step? No problem! Just raise the pitch! Wanna set a loop to play a solo or difficult part over and over? You can do that! Need to slow a difficult part down and slowly increase the speed as you get better? This app can do it! You can even export songs you adjust!!! I use this about every time I play and it is the most important jam app I have hands down!!!

Super high quality app that I can’t use much. This app was recommended to me by my guitar teacher and it’s really good and worth the price. But I have Apple Music. So only about 1% of the songs that I own can work on the app. This app is great but please get Apple Music to work with it. Thx

Amazing learning app. I first thought the app was too pricey. After I had it now for a month I would say it’s a bargain. The only thing I wish they would improve is the quick back “one second” arrow. I wish you could modify it to set however many seconds you want, ie: 2,3 4,5 seconds, etc. It really helps in learning songs. If you are thinking will this really help my practicing? The answer is yes, so buy it.

Some bugs. Initially, for the first dozen or so tries, which involved numerous downloads of the App, it did not work at all. I could not import any songs, and the App went blank and unresponsive every time I tried it. No error message, nothing. A few hours later, after emailing the developer, when I tried it I got the message that the songs needed to be downloaded from the iCloud. I did that & it worked as promised. Not sure why it was not telling me about downloading from the iCloud initially.

Stupid Apple Music prompts. I use this app and think it’s great. The only drawback I have is every time I try to access the music I bought from Apple, it immediately gives me a prompt to join Apple Music. When I hit not now, it takes me back to the home screen, and repeated attempts are frustrating as they are exactly the same. Can you please fix this?

Excellent app. I was just sorting and cleaning up my files on ASD and realized that I have been using it regularly for over ten years on an ipad. Works beautifully for learning by ear. Amateur fiddler here with classical music background and I find I need to get my eyes off the page : )

More frustrating than helpful.... This app consistently crashes. Even as we speak I’m trying to play a song on it because I have a show Saturday and have a bunch of songs with key changes to learn, but have to keep pulling up the app and let it tell me numerous times it failed to play the song. Or it just won’t do anything when I select a song to play. One of the only times I can “practice” is when I run in the morning. It’s been a huge headache. It will get through a song, not move onto the next, I’ll have to stop and totally interrupt the flow of everything, open the phone, try to get the next song to play, half the time it still won’t play and I’ll actually have to restart the entire phone to get it working again, when other normal music apps will just keep playing through each song. I don’t think it’s worth the money I paid. I have never bought an app this expensive and don’t like the fact that it crashes, freezes, and doesn’t work right. If it was a free app, I wouldn’t care as much because I didn’t have to pay for it. But $15? I’d almost rather get my money back, but conversely I need a way to practice these songs with the key changes and this is the only app I know of that can accommodate. If there is an option to actually download the playlists with their changes to avoid all this that I’m not seeing, forgive me. But I’ve searched and don’t see anything like that here.

really great + request's. This app is wonderful and when it was shown to me and recommended to me by a friend I got it and was worth every penny. Within the first 20 minutes or so, was able to learn a phrase from a song I could never figure out for years. Especially good because i'm completely blind and rely on iOS' voice over and was happy to learn that the app was fully accessable to me. All in all a stupendous app and would highly recommend. Just a few requests. - add flick gestures for voice over users - a function to adjust the quantity a slider will change - The ability to change the name of imported files that are just a jumble of numbers and letters Thanks again for a great app :)

Music AND Language! At the same time!. I have had this app for years. At first didn’t use it much but then moved to China where I slowed down transcripts so I could copy the pronunciation (along with the tones). I am now using it to slow down songs so I can learn the rap portion in Chinese as well as instrumentals! Well worth the money I bought it for. I have dropped pitch of songs too. Does a good job of changing key without too much distortion.

The most useful app ever!. This app helps tremendously to learn my parts gradually working up the tempo. It allows me to loop difficult sections and recall them to play along until they’re smooth. Several loops can be stored within a song and played at variable speed. This app seriously improved my ability to work on my part independently of the band rehearsal time. We can now spend our time working on dynamics instead of figuring our timing.

Fantastic app for music students. My vocal teacher suggested I get this app. And it has been so incredibly helpful. I am able to load in songs I’ve purchased and slow them down enough so that I can really study the singers vocal technique. It’s also been where I keep all my vocal exercises in a playlist so that I can just run through them every day. I also appreciate that I can slow down some of the more difficult ones that I can’t do at full speed already. In addition, being able to take any song that I like and change the pitch is a huge help!A lot of the songs I like are sung by men and out of my vocal range. This way I can change it to my range and sing along. Lastly and maybe most importantly is I needed help with something and they got back to me immediately! With a personalized clear answer that really helped me take advantage of features I wasn’t sure how to use. Highly highly recommended please support this company they are great and the product is great.

This enabled to REALLY up my game musically. By enabling me to slow music down without changing pitch, I could get solid at a double speed and then increase it gradually. It also enabled me to get used to playing with other harmony parts, also slowed down. What a blessing!

Been using ASD forever. I love this app. So many famous artists have tried to keep me from learning how to play by writing fast, complicated music. They would have succeeded if not for this app. I have very slow ears. I can’t believe how long I’ve had it. I think it was before computers. Yep, the first app was written on a sextant. It worked and it still does!! Thank you! You make me seem so smart.

Great app for singing practice. I'm a classical singer who has been relying upon this wonderful app for years. If I have a recording of a song's accompaniment, the app can transpose it so I can try it in different keys, or I can slow down passages to work on them (and set it up to repeat that section over and over again while I practice it). It is very reliable, doesn't take long to download and update, and I have nothing but admiration for the developer.

Finally up to speed. The latest update is a positive game changer. I purchased this app at least a year ago only to be disappointed that it did not support Apple Music content, but only purchased content. The latest update is a game changer by supporting Apple Music. The app is now a no brainer must have. I think the time stretch algorithm could be improved upon. Therefore a solid 4 out of 5.

Perfect. I never write app reviews. However this one is something unique, an ultimate tool for the jazz musician. Thanks for making it available for us all and supporting the music. Well worth the purchase price

Such a great tool. This app is awesome. Having to transcribe for students and for my own studies is a breeze with this app. And the pitch adjustment slider is a life saver when it comes to learning older tunes where the instruments or the recording weren’t quite in tune. Great practice tool also!

More than worth the price!. More than worth the price! Truly a game changer! I tried cheaper options and their interface looked more interesting, but those looks were deceiving. Those others were difficult to effectively manage and really buggy. ASD proved to be “amazingly” intuitive, easy to organize what you’re learning, and completely bug free. You do have to “own” your iTunes music that is imported, and they have to be downloaded to your device—Apple won’t let you work in other programs with their music otherwise. I do pay for Apple Music, so I have to individually purchase those pieces I decide to accompany on my banjo. But that is a very small added cost for the time ASD saves when learning the song. Besides having quick and easy control of pitch and speed, the setting of focused sections of songs is very easy—I was setting focused loops on the fly the first night of practice using ASD. Each loop only took seconds to create and are automatically organized under a disc looking icon linked to the song. Having the loops organized with each song like that is one of the many details that make using ASD intuitive and effective. I do not typically leave reviews—less than a half dozen made in my lifetime across all platforms—so this review is a sign of how impressive and helpful this app truly is. Thanks for this great product!

LOVE THIS PROGRAM, Should have purchased 3 years ago!. I am currently a mandolin student and purchased to learn an advanced solo. I fell in love with this APP immediately and wished I would have bought years ago! You can slow down and learn at a speed to catch every little detail and as you progress, you then reward yourself by increasing the speed! Easy to follow! I only wish it would work with my Bluetooth speaker!

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Great!. I’ve been using Amazing Slowdowner for years and am very happy with it and its regular updates.

Annoyed. 🙁 Maybe say that you need Spotify premium I just lost $20!

It really is amazing. As a singing teacher, I find this ap incredibly helpful! Changing keys, and tempo for learning and performing songs. Just brilliant.

Amazing. The best app on the store. Works perfectly Constantly updated No glitches and works just brilliantly. Buy it. You won't regret it, Fantastic customer service.

Where is the Dropbox button???. I love this app. But with recent upgrades the Dropbox button has gone missing! Please bring it back! I NEED IT!!!

Re-pitching. I mainly use this app to re-pitch songs that I want to play in standard tuning on my piano. I’m grateful this app exists

I Love This App!!!!!!. I’ve uset this app for years now and it is truely AMAZING!!!

So useful. So easy to use. I have been using for past 3 years. ALWAYS use when I practice (and apart from improving my rhythm and tone, having the tune play in the background makes me sound even better! )thankyou.

I love this app. This app is easy to use and allows me to slow everything right down to get everything right.

ASD is amazing!!. As a musician and teacher of music, I have found the Amazing Slow Downer an invaluable resource for myself and my students. I first purchased the program for my Macbook Pro and was very impressed at the flawless control of time and pitch, which for me are the critical tools with this sort of program. You can literally bring a track to almost stand-still without any noticable loss to audio quality, so even the absolute beginner students are able to play along to the music of their choice. This makes them feel good about their progress and makes me feel satisfied knowing they are establishing a strong sense of rhythm straight away. The advanced players are able to take on virtuoso pieces at a moderate tempo and bring the speed up progessively. The pitch control allows me to set any key to backing tracks for vocalists with full confidence that the playback will be uncompromised. This makes studio time and performance a breeze. I was very interested to see whether Roni Music had come up with an equal standard for this app, and indeed they have. Plus, uploading via web browser is very straight forward and fast. I use this on my iTouch which makes it very convenient for any given situation. I believe credit is due where deserved, and I wish to personally thank the Roni Music team for creating an app that makes my business work better and personal life creative and fun. Cheers guys, Lars.

Mega Useful For Musicians. I use this for learning new songs by ear, it is sooo useful. Just open your Spotify playlist directly from ASD, choose sections, loop, slowdown, etc. In the past I've ripped songs and used other apps to loop them, ASD makes this immediate.

Great for ballroom dancing. I use this app on my phone for dance practice, it is great for slowing down Viennese Waltz songs to New Vogue waltz speed. Also great to slow down music to practice things more slowly. I would love it if you added an option for Bars per Minute, or measures per minute, as this is how ballroom dances are measured. Pretty please!!

This a fantastic, highly useful, brilliant app. Whether you’re playing an instrument and trying to work out songs, or learning to sing, this app is nothing short of fantastic. It’s functions are so useful and save so much time and effort, which in turn speeds up the learning process. I love how you can load in a song and then create loops (which are saved in a list for you select and play whenever you want) This means you can focus fully on learning a song one section at a time. Master that loop and then simply select the next loop and start working on that. Also for singers you can change the pitch to suit your voice. For guitarists being able to not only slow down a riff but also have that riff looping, means you can sit there as long as you like until you master the riff. This app is what musicians in the past could only dream of and more.

Good app. It’s a really good app but there is often few bugs the most annoying one is if I workout on a song and go away from it and come back to my phone it’s nearly impossible have to spend 10 min trying to reopen the song again but all other songs are opening fine it’s frustrating me and the playback does get stuck

Bugs. This app has been amazing for a year or so, but now and after updates it’s starting to glitch out all the time with error ‘playback failed’ ... very frustrating.

Good when works. This app is usually really good but the speed up and slow down feature (whole reason I got this) is playing up and won’t work. When it does work I highly recommend for drumming 👍

Brilliant App. This app has made a very positive impact on the way I practice and transcribe music. I also use in all my lessons as a guitar teacher. The way in which your Apple Music library is automatically loaded on and is so accessible is the main draw. The looping functions were a little clunky at first (I’d love a punch in and out button that let you set loop points as you play) but works well once you get used to it. If the developer is reading this, thank you so much, this has made a huge contribution to my practice and I’m recommending to all my friends. I would recommend working a little on the presentation. This app could go viral if it had a more professional looking logo and a better name.

Love this app. This app is amazing! I have only one request; please make it possible to edit track lists to arrange tracks in set list order. Loving your work! The addition of spirit has been a remarkable positive!! Keep it up!!! 💛👍🎉🎶🎶🎶

Nice app. The Amazing Slowdowner is the perfect way to slow down fast tricky guitar solos whilst maintaining pitch and sound quality. Actually it can adjust the pitch too if required. The user interface is uncluttered and easy to use so you can concentrate on the music without having to waste time and effort grappling with a whole lot of useless feature bloat. It includes an equaliser which you can turn on if you want to adjust the tone to suit what you want to hear. Amazing? Yes I think it is.

Great!. As a jazz piano student, this app has all the essentials I need for transcribing at the keyboard. I like being able to save loops and to change tempo if necessary.

Great App. Nice update Moving songs works well

Excellent. Straightforward, simple but does everything you need, create and store loops etc as well as the usual speed and pitch. Mainly I like how big and easy the buttons are, when you have an instrument in your hands it's easy to quickly tap pause/play and quick rewind (which you can set to go back in different increments - great feature). Hopefully they don't change this aspect. You can't see the waveforms of the track but I don't think that is a problem, if anything it probably helps keep less cluttered.

Good but Spotify doesn't work. The app itself is pretty good. One can change the velocity of a song, change the pitch and even loop certain parts of a song. But the reason why I paid more than 20$ for this app is because of the Spotify function. AND IT DOESNT WORK! Every time when I try to connect ASD with Spotify, the same error notification pops up:" Cannot connect to the Spotify server" This really annoys me because that was the main reason why I bought it. Really disappointing.

You need this App!. It’s must have! Perfect App so many ways. Have got so much use from it. Really helpful learning songs. Buy it!

Expensive but better than free music slow-down apps. I tried several free apps before forking out for this one. The free apps had clunky user interfaces and lack the same precise control over speed that ASD has. Other functions such as simple looping were missing, and in one case an app didn't have a restart option so we had to wait for the piece to finish or at least speed it up to finish it. This app is used by my kids' music school so I finally figured it was worth buying. They practice piano five days a week and the app is invaluable when they are mastering new pieces. Slowing it down so they can actually keep up boosts their confidence and before we know it, they are playing full speed (or faster as one of them likes a challenge). Didn't rate it five stars as the UI could still be improved, such as importing more than one song at a time.

Awesome. This has got to be one of the only apps that stays on my phone constantly. Does what I need when I want it to. It comes in so useful when I'm trying to figure out parts of music and I love its ability to transpose the track.

No Spotify access. I used ASD to practice songs all the time. Without Spotify access the app has become useless to me.

Just love this App. So good! So useful! It’s helped me learn songs and practice over and over for years. Thankyou. Love it!!

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Spotify songs don’t show up anymore. It was good initially, minus the eventual lagging here and there. But now that I can’t load and slow down Spotify songs anymore it’s completely useless as that’s what I use to have access to songs.

Great!!. I've been using this program for years, first on PC, now on iPhone. Love it.

Restricted imports. Does not import songs from Apple music. Beware.

Amazing. I have been using this to help me learn new songs on the electric guitar. Playing along, I can start off slow and increase the speed as I become more proficient with the song. I ca create short loops, with automatic restart to help me with difficult sections. No matter what the speed, the pitch remains the same.

Great app!!. Wish it was supported with Apple Music tho. Spotify works with the app tho.

Amazing - I use it everyday. I've been using this app since v1.4 on my 3G iPhone. I am now using an iPhone 4S. I use it pretty much every day to assist with learning drum and guitar parts in songs. (Sometimes the playback will hiccup, but I'm on the slower 3G iPhone.). There are no hiccup issues with the iPhone 4S. The newer iPhones should not have this problem. A little expensive, but totally versatile with lots of options for equalization and playback speed. My only "complaint" is that the app icon is uninspiring. A melting record or CD icon would be cool. Just a suggestion. Thanks.

No Spotify, and no export anymore. What’s happening to all the functions?

No Spotify. I went back and forth for a few months about buying this app. I had the free version and lovvvvved it and decided 5 mins ago to bite the bullet and get the full version. Within 30 seconds I discovered that the only function I liked the app for (spotify) no longer works. $20 on an app I can’t use. Crying real tears lol I’m in the refund process at the moment. If you get Spotify back I’ll be back but it’s useless to me without it. :( sorry developers I know this sucks for you too.

best. your app is the most beautiful thing ever. i have used this app for 10 years to enjoy my favorite music. thank yu!!!

ASD. Please enable pitch to go +/- 8 semitones (up or down one octave) rather than just six semitones. Keep up the gray work! I have been using the desktop Mac version for years!

Amazing app that's good for drummers. I can't express on how much drummers need this to play the song right 🍟

Amazing!. I have been using windows version for a long time! This is amazing as well! You can store loop sections too and recall them later. Worth the money.

disappointed. looked like a great app but i wasnt able to connect the app to spotify. 20$ wasted

Still good. Even though Spotify is no longer available, I did not let that stop me, so I recorded the Spotify songs and put them in the app as mp3s

If you want frustration on your iPhone. …beyond belief from an app that can slow a song down without changing pitch but requires a phd in order to read about how said app can do that for you - then this app is for you!!

Could be great but.... The concept is good and for the few tunes I had on my iphone it works. But the Help interface is like an afterthought, it's so poorly written and next to useless. It does NOT work with Spotify Premium, despite the couple of paragraphs that are useless, and there is no trouble shooting or help available. The "import files" is an unwieldy and awkward -- can't even "copy" the string of numbers you need to paste into a browser. For $21 I expected a better app.

Best slow downer ever. Was the best is the best will always be the best thanks for the update you have helped countless musicians around the world I personally cant thank you enough for this program. Been using since before iphones existed and will forever.

amazing is the right word!. this tool is absolutely amazing! you know that frustration you get when you're trying to hear that one lick on your favorite track? well now it's gone! that mechanical choppiness you get with other speed shifters? gone! trying to get just the right segment to loop? easy! you would think $15 is too much... and it is expensive, but it's better than anything else out there! just try it.

Wonderful product. I have been using this app since it first came out. It has become better and smarter ever since. Worth the money for serious musicians who need to peel back the layers of pieces they are learning.

Not amazing slow downer. I have yet to be able to get this app to work on my ipod!! Its very frustrating given that the free version was so promising. I have also not been able to reach any support for the app. Very disappointing.

Essential for all choir singers!!. I love love this app. Invaluable in learning your parts note perfect..... slow it down without changing pitch! Amazing. I create separate loops for the tricky parts and keep them on repeat until I get it. Plain simple interface but does take some time to play around and organize it for yourself TOTALLY worth it $$$ wish wish wish that APPLE MUSIC would sign on.... does work with Spotify and you can import your own purchased songs library and your choir files.

Works Perfectly.. Thank you for letting me able to tab fast works for music, and for updating the app every now and then! Only thing I feel that could be implemented is a default button beside the speed slider that resets it back to 100%. I find my self having to slide it back to 100 often. Could even be used for the other functions. Thanks again!

Excellent app!. Very useful way to learn new pieces. I like the way I am able to download directly from my PC. I wish it allowed me to rename files though and move them into different folders once they are in the app.

Great but minor tweaks would be great. First off let me say what an indespensible tool this is for musicians. I use this every single day to lift and learn songs and solos. The UI of the now playing section is great but I feel like the files section is a bit awkward. There is also one feature that would make my life a lot easier. That would be the ability to quickly and easily move a song from on folder to another. Might be nice if when you slide from the right the options were move / delete or even rename / move / delete. Two places you could take cues from are two more of my favourite apps: Recordium: offers a great set of options when you slide out the track from one side. File Hub: holding the track name pops up a sort-of right click bubble with options. Thanks for listening. And seriously thanks for the great app.

Sweet update to an awesome App!. Good lord! Today it was like xmas morning all over again! As much as I've absolutely loved this app, I've been wishing for Spotify integration for quite a while. Didn't think it would actually happen! What a boon for musicians...access to millions of songs that can all be slowed down on the fly. Good days!

Je recommande / i recommend. English message will fallow... E recommande, je mien sert pour simplement pour calmer le rythme de ma musique en relaxant mais le seul problème est le fait que nous ne pouvons pas utiliser notre abonnement Applemusic . I recommend, I use the app simply just to calm the rhythm of my music when I’m relaxing. The only problem is we cannot use our Applemusic membership song.

Love it but..... App doesn’t work with apple music subscription only music you have downloaded and paid for. Great app if u own the music! Would be a 5 out of 5 had it worked well with apple music. I have moved over to the apple music section however the app works poorly at best. I am not able to stop my music unless I back out of the song, if you attempt to slow the song down it may or may not work at the speed you set. Again, the app works if you own the song, bugs if you use the apple music subscription.

This is amazing?. Well, what can one say. It does in fact slow down music without changing the pitch. The audio quality is good. Beyond that though, the user interface looks like a dog's breakfast. There is no benefit to the extra screen space on the iPad - it just blows up the ugly buttons and sliders. It doesn't even have a waveform view! I find that an astounding omission considering that all of the competitors on iOS and the desktop have one. As a result, ASD makes it much harder to find and pinpoint a loop than the competition. It's also lacking in features at the price point. Do your research folks - there are actually a few "amazing" slow downer music apps for iOS. Do yourself a favour and search the store for a few before defaulting to this one because you used the desktop one ages ago.

A wonderful practise tool. Students need accompaniment when they practise! (W. Marsalis) Most demo files and accompaniment need tempo adjustment in the early stages, and this is the ticket. There is a learning curve, finding the files, which need to be present on the device, but after that, it’s fun all the way. A worthwhile investment. I recommend the use of a speaker so that there is adequate volume should you use a smartphone instead of a tablet.

About time. It's about time lol that an APP like this came along. Great for EVERY one who play any instrument. Great for all musicians and for beginner to advanced students. I have used it for my choir to change the tones and loop sections. I have also used it with my drum students and for myself to listen to a fill or grooves, learning different technique and stickings etc. Play n at a slower tempo and be able to set and loop sections for better and efficient practise.Sweet. A Great App. To me, it's worth every penny. Even though It my be one of the most expensive App out there I just tell my students that it is still cheaper than a great pair of drum sticks and you will always find the need to use it. Period. Wish I make this App.

Great app. I have loved this software since the earlier winamp versions! I've used it as my go to app to learn many songs. Import from itunes library is a great feature. I've left one star for improvement on integration with other software. I would love to see Audiobus support, so that i could use this software as a looper in apps like cubasis. Thanks for supporting this software!

No longer able to slow down Apple music. Initially great. No longer able to slow down Apple Music with no projected fix date. Not worth full version cost without this feature.

Muting option. If you could mute out other instruments this would be the ultimate music app

Key of song. It would be nice for the slow downer to tell you what key the original song is in and then tell you what key the song is changed to if you raise or lower the pitch. Otherwise love the app !

Metronome. Really nice app!! Is it possible to set and a hear a metronome while playing ? And to have a pick-up before the beginning of the song ?

Great Looper. I have been using this app for a few years now and have transcribed countless songs through it. It is intuitive to use and is always stable. I can't remember what it cost but it was definitely worth it! Highly recommended!

The best app for Lali. I’ve been using this app for 15 yrs from when it was first developed for Mac OS pre iPhone days. That should say it all! Best algorithms and plenty of tweaks. I’ve made some killer loops and thanks to ASD even Lali can agree that yes it’s a high tom and not a snare.🤪 Thanks Ronimusic, you rock

Good app. Does what is expected, good sound quality, looping feature well made. A bit expensive but very useful for me. Thanks!

Ideal tool for learning songs by ear. I've used this app to help me nail some difficult transcriptions. The features it offers are extremely well thought-out and the interface is easy to deal with when I'm in the practice room.

Developer. With iOS 11 you can’t use search to find a song from your library to put in a playlist. The developer refuses to fix it.

Missing Features. I bought this app and it worked great, but now the pitch function doesn’t work with subscription music services. There are cheaper apps that do the same thing as this one now that the pitch doesn’t function properly so I can’t recommend somebody paying twice as much for this app.

Best app. So great - if you have Spotify and want to learn a song, it’s the best thing short of an actual teacher

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Great App!. I LOVE this app, and use it all the time. As a musician, it is pretty much everything I need for learning by ear. And I’m so happy I can now import from Apple Music. I’d recommend it to every musician I know. Worth every penny!

Excellent. I use this app to help me learn Irish traditional music by ear. The only feature that I wish it had is the ability to download an mp3 directly from the web.

Definitely amazing. I don’t write reviews for apps but this one is just great. It’s really nice that it works with Apple Music.

Great app; does exactly what is says, and does it well. Love this app; however I would love to be able to curate my play lists on my Mac and bring them into the iPad though!

The export button doesn’t show up/ disappears. I just downloaded this app. However, I am able to import a song and adjust is according to my like but aren’t able to export. There is no button for it. All I see at the bottom is “help”, “looping”, and “settings”! Can someone pls help me out with this

Should’ve brought earlier. I brought to listen to my music like the do in Texas, slowed and screwed. Pitch and tempo match made in heaven

Misleading- DO NOT BUY (it won’t do what you think it does). I’ve never paid money for an app before but bought this because it states in the description it works for Apple Music. I wanted to change the PITCH not just the TEMPO. That was the whole reason I bought the app. I subscribed to Apple Music for that precise reason. Waste of money- don’t buy this.

Possible DRM changes in Apple Music?. Most, but not all, songs from my Apple Misic library now fail to play in ASD on iOS 16.4 Two modals appear in succession: “Error: mpTheDecoder->OpenWithRestrictions() failed. 'wht?'” “ Can't play this file.”

Very good, BUT. The app is excellent but very little music is usable because of the copyright issues. They could probably be a bit more forthcoming on that I suppose, but all in all I can't really blame them for the publishers greed. I do recommend this app if you consider that caveat.

Amazing for all music. Good quality sound, there’s exporting options, and simple interface. Great for slowing down music, can’t ask for much else 👍🏽

Greedy company lacks re-download. I switched to a new phone after purchasing the app for $15 and reached out to roni music to see if I could download the app on my new phone. They said no!! One star for greed! I already paid for the app why would switching devices make a difference? Simply deactivate the old app! Find another slow down app that actually cooperated with its paying customers!

Love this app. This is amazing app I use it all the time it’s so good I love it you guys should keep up the good work

Awesome help. Invaluable to me as a classical guitarist. Aids me in memorization, rhythm and playing speed of the music I’m learning. Thank you so much.

Incredibly useful.. ASD has probably been the most helpful tool in my guitar learning experience, and for that I am very thankful.

Good but could be tweaked. The app works great but input could be tweaked slightly to make it better. Adding the ability to type in a value for the sliders would be helpful for precise selection.

Life saver. Every collaborative pianist needs this. Get it. You kill two birds with one stone by learning your part with careful practice while simultaneously learning your partners parts aurally. I just wish the app was more fun to look at.

Was once great. But has been so buggy the past couple of weeks that I will have to try an alternate product. Jams constantly.

It really is Amazing!. I love this app. Wish I'd had this back in the 80s when I first started learning guitar. Sure makes the finer details of those super speedy guitar solos a lot easier to nail down.

Amazing app, one question. Could we incorporate a feature in which there are multiple audio inputs for blending?

Good App. At first I was a little scared by the price tag, but I have found this to be an amazing program and definitely recommend it.

Not worth the $15. App isn’t bad but I wish it would let me change the pitch of any song from my library which is what I thought would be accessible when I purchased the full version. $15 out of my wallet for no reason

Such a great tool to have in the toolbox. I’ve been using amazing slow downer for years. It’s simple yet effective!

Great for Irish trad music!. Why did I not buy this app years ago... perfect for slowing down fast session recordings to get those five pesky notes you can't un-jumble at speed. Highly recommend!

Randomly stops playing music (frequently). It randomly stops playing the music when it’s on loop very often. This app is so useful when it works but every time I stand up it stops a minute later and I have to go fix the “playback error”

Really want to like this app but. It doesn’t work very well. Every time I change the speed of a song on Apple Music, the song sounds all garbled & I have to restart the app. to get it to sound right again. Have latest version installed but that hasn’t helped.

Much Better Than Laptop Version!. The audio quality even at half speed is pretty great. Especially on acoustic stringed instruments that can usually get pretty ratty quickly, this thing performs well. Very cool.

Great but bugged. Need to fix the bug where you slow down the music and then half the time when you “rewind” it, it plays back normal speed. Extremely annoying

ASD. I like the app as it provides a great platform to learn. I am having an issue with protected songs. Do I need to be to have an Apple Music account to download music from my library?

Not worth $15. It's good other than when you use the sliders, usually you can't change it by small amounts. It skips whole semitones so you can't really change it by less than two semitones reliably.

Great. Does not let you use music you have downloaded off Apple Music but otherwise it is an amazing app

Such an awesome app!. Super stable and feature rich. I use it all the time to change pitch and/or adjust the tempo. Highly recommended.

Helps with transcribing. I love using this app. Very easy to use, very handy, and sound quality is good as you slow things down.

GREAT app!. The most indispensable app I have! I use it for learning tricky passages, finding which key is comfortable to sing in, and for practicing licks in different keys. I tell everybody about it! And it goes with me from device to device without any problems.

iPhone ASD - Just What I Needed. I’ve had ASD app on my MacPro for many years and use it daily but have to cart it around when not at home. This app for iPhone couldn’t be better. Now I have ASD in my pocket wherever I go!

Doesn’t work with mail app anymore. Used to be able to open files in ASD right from the mail app but that doesn’t seem to work anymore in iOS 13. Hope that can be fixed cause I love this app and use it all the time

The update enabling playing Apple Music doesn’t work. I’m an Apple Music subscriber, but still get error messages saying the songs are DRM protected, even after the latest update. Disappointing because this would have been a fantastic feature.

Great App. The biggest drawback is that you cannot change pitch with tracks downloaded directly from Apple Music. Is there a fix for this??

Great !. A great all purpose audio application and finally they brought back the function to listen to podcasts.

Great but I cannot adjust the pitch?. Every time I go to adjust the pitch it doesn’t let me. Lets me slow it down just fine though. How can I fix this? I have Apple Music

NEEDS MORE FEATURES. I really like this app and how you can play music over other apps but I wish it had the ability to save eq’s the ability to add reverb and the ability to still have music play while searching.

Caution - you’ll lose all your tracks with new phone. This is a decent slow downer, but the big issue is how they store your slowed down tracks on the iPhone. I just upgraded to a new phone and everything came across from my old phone EXCEPT the ASD files. On my new phone, ASD IS EMPTY. I lost hundreds of tracks and in/out points, pitch adjustments, etc. it will take months to rebuild them all, if it is even possible. So, watch out.

Wonderful!. An amazing product that keeps the music clear at all speeds and pitches. This is a must have if you want to transcribe music. Great job… Ronni!

Great but overpriced. Great app. If I'm transcribing a song or want to practice a specific section, I like that I can make a short piece of the song loop. I'm not happy with how much I paid for it though. I didn't look terribly hard but I was surprised that I couldn't find a cheaper alternative.

The best. Thank you for the continued development of this to me, indispensable app. I would not know half of the cover songs I can play today if not for this beautiful work.

Very Useful App. I use this all the time to transcribe and it is by far the most useful transcription tool I have used. Worth the money and very easy to use.

Great fun for audio experimentation. Would be really nice to have audiobus capability. This app can be used in a performance setting using pre-treated audio recordings - and it would be great to be able to run it into AUM or other iOS based mixing platforms.

Does not work with new Apple iOS.. iTunes and the new apple iOS protects the music and even though I bought the music, I can only use iTunes to play it. Unfortunately the only way I found out was going to the developer website and reading the faqs

Terrible. Program was great before you had to adjust with sliders. Now you lose your place every time you want to change or just add a tiny bit to the loop. It’s just cheap and clumsy now. Put back the buttons and the digital markers. Awful.

Please take this recommendation!. Id give this app 5 stars if you made it able to browse other songs on the playlist without stopping the song you’re listening to

Love the app... HOWEVER some changes are needed !. I love this app however I feel as there some features that need to come -ability to shuffle songs while keeping settings -ability to add reverb and such -add more and more sound settings and voice effects