FFT Plot App Reviews

We transfer money over €4 billion every month. We enable individual and business accounts to save 4 million Euros on bank transfer fees. Want to send free money abroad or transfer money abroad for free? Free international money transfer!

Great job. This app does exactly what it claims to and looks great. I’ll be using it in the classroom soon to demonstrate concepts like “narrow sound frequency band”. Thanks!

Underrated. I use this app when I'm performing the final tuning in car audio systems and I'm impressed with the response and resolution it has. It could be better if it supported external microphones such as ZOOM's XY and omni capsules but performs pretty reliably through the iPhone's internal microphone. And fairly accurate up against my ARC software in my recording studio studio. Well worth the money if you need a good FFT

SCIENCE FAIR. Me and my friend used this app for a science fair project testing the sound waves blah blah blah. Basically it was great and very helpful so thank you and I totally suggest the app for future people interested in getting it.

Great App. This app is great for finding noise sources. I have been using it now for a good while and have been very pleased with it. It is easy enough to use and it wasn't expensive. I hope you enjoy it too!

Kind of disappointing. I think I bought the wrong app. Would have likes to be able to expand (zoom) a frequency region of interest. Would have liked to be able to zoom vertical scale as well. No help screen to explain what such things as "mixed" display means.

Awesome App!. I use this at FOH a lot and really love it! Very useful and accurate!

Great App, but.... Very nice, love the window function and controllable # of samples. Used it to check the vibration frequencies of a glass plate. Wish I could email or otherwise share/save the plot, though!

Favorite fee app. As a studio engineer who has to run live sound a few times a year, this app saves me a lot of trouble. I can ring out mics in a heartbeat and solve problems more quickly on the fly. No more sweeping for the exact frequency to notch, or for where to center the de-esser! It’s especially handy on an iPad with its larger display.

Works as your audio-minded search would hope. Has all of the features you'd hope and need to do simple spectrum analysis or tuning. I've used it to troubleshoot turbulent flow in a nitrogen compressor and then tuned my piano with it later that evening. Worked perfectly.

I really like this app!. I used it to diagnose a whistle sound in an air handling unit. It works quite well and I have told several other people about it. I use an iPhone 5 and when you take a screen shot and upload it to your computer, it looks very professional. The other features are very nice, too. My only suggestion is to allow zooming in on the Hertz scale.

Great app. Super simple. An invaluable tool.

OK - but needs work.. Flashes under the latest IOS 9.01 - not sure why it's doing that when it didn't under the previous IOS.

Best App Ever!. This app is awesome!! So much power for fine tuning your sound!! We use it at our practice and at gigs to get any and all feedback, howling etc out of the mix. You can see exactly where the problem is. Easy to use too!

Feedback no problem. Displays a clear and accurate the frequency present in an environment. Hats off to the developers A+ app.

Works great!. Although I would recommend their more expensive, fully featured app. Well worth the money.

Simple and Useful. Nice, simple app. It does the job well. I downloaded this app to test the frequencies in songs, as I curious what are the notes sung.

Ok, but f axis not scalable. Please make the frequency axis fully scalable. Better yet, make it so you can zoom or set to a specific range.

Bull cheeettt. Worst app on sound that I ever used...Don't worth the money I have spent on it... It look like a you and NOT a tool that I thought I could use for quick analysis of NVH application. You people are f...up, you don't allow any right comments that is against your apps...

Very cool!. Very cool app that tells you the spl at different frequencies.

Performant and accurate.. Fantastic! Apps like this are the reason we don’t need to buy a stupidly overpriced bespoke piece of gear for every little niche... unless we want to! Keep up the great work!

Fantastic FFT. Using it for a school project. Tried a few free options and there is nothing close to this app on the market. Works very well!

Great for running a sound board. I use it to help EQ vocals and instruments on our church's soundboard. It compares favorably with a pro sound app on a Mac with a mic. Hey, can you create sound meter app that will compensate for each phone model's mic frequency response? I have not found any accurate meter apps.

Great respect for the app developers. I use it to show my kids what music looks like in the frequency spectrum. Given how much time is required to learn and program an FFT analyzer, I am glad to support the developers efforts.

Great app, needs a way to export data. I greatly enjoy how feature full and yet simple this app is. It runs great and seems quite accurate. One thing I think is dearly missing is a way to export the signals measured to a file (like csv). Taking pictures is great for qualitative comparison but this tool would be way more valuable if it could be quantitative.

Owner. Useful and a needed tool in my audio work. Highly recommend this AP.

Does everything I need it to do. Works great for real time analysis of studio monitor frequency response in a particular studio configuration, as well as tuning a PA system at a new location. Seems to be more accurate using an external mic with a flat response.

Multiple uses. I use it to track hums and vibrations throughout the home, set up my home entertainment system, adjust my bass guitar settings while playing on stage. Accurate, entertaining and informative.

simple and easy. Exactly what I want

Great app. The averaging function works really well. It would be nice if I could figure out how to use an accelerometer with it

Fixed frequency range, no zoom. I was interested in 20 - 80 Hz. The range appears to be fixed at 0-21k. So the low frequency resolution is coarse and the is no peak hold for catching unstable sources.

Great app!. Would be perfect if it can record a samples

Love It. I love this app; though I'm experiencing the same issue since the latest iPad iOS update. Lots of flashing and I've tried every fix I can think of and it's still not working. This app has been so useful to me in the past. Hope it gets fixed soon : (

My Fave FFT App. It's fast/slow and window choices, and look and feel are very natural for working in the frequency domain. Watching music it just "looks" proper. The ability to decode the frequency peak to a musical note is a natural, but extremely useful feature... Three features I'd like to see? 1) Screen capture video... share the look of your favorites dynamically. 2) Capture-Process-Slomo: capture a length of audio, process the FFT, then play the video back slowly, with scrubbing, to allow transposition of complex arpeggios... 3) Transpose 2) into musical score or tablature.

Very nice. Very nice app. It hasn’t been updated in quite a long time but it works just fine in iOS 11. I’d like to see an update with more robust features (hi developers) maybe a spectrum analyzer too or more info on the frequency graph etc. But as it stands it works very well.

Lutherie. Great for tuning violin plates and other acoustic modes.

Simple and Powerful. I am using it in a project to analyze and make ocarinas. It is proving very powerful at providing information on harmonic content of each of the fingerings as well as reliable at locking onto the fundamental and displaying it. Very useful also is its settings for integration time since the ocarina is a mouth blown instrument and tone changes a lot with how you blow a particular note. True one can think of lots of features you might want to see added, but for the price you get a powerful tool worth every cent of the price.

FFT Plot. A good app. that has great potential but needs some instructions and advice to get the most out of it.

Disappointing. Scale ranges can’t be customized and cannot see low frequencies below 20Hz and DC value. If this were fairly clarified, which it isn’t, I would not have purchased this as it is really useless when those features are what you need.

Very nice FFT. The nicest thing about this analyzer is that it has the ability to recognize the particular microphone you have plugged in to your iPhone. I use a Shure MV88 stereo mic. That means that the application is calibrated for my particular microphone! I was able to quickly equalize my sound system and it sounds much better now.

It works perfectly. I have been waiting to have this kind of app! Thanks!

Fun and sciency. If you're curious about tonals, noises, or how loud that concert really is.

Pretty great! Could have better decibel calibration. This is an awesome app. Fastest and highest resolution FFT I have seen on App Store. Professional development and works well. My only request is that there be a better measurement system of overall volume ("60dB" for voice and "95dB" for concert, etc.) Oh! Also, please add split screen support for iPad!

Absolutely fabulous. Works perfectly. My only wish would be to also look at the waveform in the time domain. I use this app for testing new speakers. You will not be disappointed.

Violin making. I use this program for mode tuning on violins. It an amazing app!!!

Review From an EE in Signal Processing: Excellent!. I’m a BSEE (University of Washington, 1995) with experience and a bunch of patents in signal processing. This app is an outstanding tool for understanding the spectral content of an audio signal. It was clearly designed by someone with some expertise in the field, and it’s a joy to use.

Live sound...works for me. Rta lite both stopped working and added adds to the last update so I went looking for a new simple app to ring monitors with...this one is doing all it needs to do. Not fancy but totally functional. Here's o hoping hey keep up with it;)

Nice frequency analyzer. It's a nice, simple frequency analyzer that works well. Used it to help explain frequency and pitch to the kid. There's not a lot of bells and whistles and flashy graphics. May appeal more to a more technical (geeky) user. Would recommend.

OK but a bit squirrely. This app seems a bit harder to navigate than others I've tried -

Here is a slight improvement idea. This app works up to 20kc, the top of human hearing If the bandwidth is available, then enlarging the app to 40kc would allow you to study Ultrasound Also

Perfect!. This is a perfectly designed app! The single window interface is sooooo nice. I love that there aren't a bunch of "pop up" windows and other clutter. They keep it straight to the point - give you exactly what you need to analyze whatever sounds are around you. The "peak frequency" section is so handy and it's great that it shows you the corresponding "note value" right next to it. The pause button is great to just freeze the waveform and analyze the peaks/nulls by sliding your finger across the screen. I have used frequency analyzers in the past on my computer but there was always about 15 steps involved in getting it set up. This app is instant and there is no setup required. I WON'T be using the one on my computer anymore and I WILL be buying more apps from this company! If you want a beautifully designed and handy frequency analyzer app - this app is PERFECT! :)

Did you know that you can earn 25 USD from our site just by registering? Get $25 for free by joining Payoneer!

Basically just volume meter. Doesn't seem to actually discern frequencies with much accuracy at all. Just indicates whether you do or do not have 'noise'. Not useful

Best picture yet. Thank you. This is a sweet representation of my string sound and very useful. Great for vocal training as well. Bach rocks.

Some points missing on sawtooth waveform spectrum, also 16K FFT problem.. Mostly it's pretty good but if I play a 100Hz sawtooth waveform into a pair of headphones, measuring it using my iPad Air using 16K and Hamming it shows a spike in the spectrum every 100Hz as it should but the 2K, 2K2, 2K3 are missing. The 2K1 spike is there. Further up there are others missing but they are too close together to tell what frequency they are. Also, there is no difference in resolution between 8K and 16K FFT. Between 30 and 40Hz there is about four measurement points in both cases but the figure should double.

Old mackie user. Very useful app, correct and most of all fast response. Perfect for tuning rooms and pubs. (Bit slow for a stadium gig but;) Most certainly a keeper. Well done

Ye. So far so good

Imagine you at your best. All the time. Picture yourself at your sharpest and most productive. Your most alert and focused. Your most lucid, creative and confident. At work. At play. In every area of your life. Add Mind Lab Pro® v4.0 to your daily routine and uncap your true potential. Buy Now!

Nice. Good app

Audio. With out tone generator limits the use of this. Also a bar graph would help when setting EQs

FFT plot. Very useful tool.

Adsterra is the most preferred ad network for those looking for an alternative to AdSense. Adsterra is the ideal choice for new sites with low daily traffic. In order to advertise on the site in Adsterra, like other ad networks, a certain traffic limit, domain age, etc. is required. There are no strict rules. Sign up!

Great!. Very helpful at analyzing a room and discovering resonate frequencies, hot spots, and dead spots.

.. Works great, helps with visualizing a room to adjust EQ. Very useful.

great stuff. needed for school... worked great.

MEP QCM. The total DB needs a function to change the weighting A, B or C.

Perfect. Love it.

Need help. App is good for mapping SPF. A help section for application for this app would be cool

Fantastic app. Does what it says and does it well!

Really great app. Simple and clear functionality. My only gripe is the - (negative) scale for SPLs

Best RTA/FFT for iPad. A calibration utility would be helpful. Seems to read low frequencies incorrectly on iPad mini.

a. great app