Ratio Calc! App Reviews

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Thumbs up!!. Great app for on the track setups, it's an absolute must for the average to the pro racer!!!

Time saver. This app allows quick and easy calculations to be made at the track when you need that little extra to beat the competition.

Great !!!. You've done a great job with this app !

Racer. Works really well in Dirt Oval applications. Very simple to use.

app. very nice

Nice. Great app for finding FDR. Has a bug on ipad at moment where I cannot hit "done", it does not appear on screen, after setting pinion and spur size, so cannot get out of this mode. Otherwise it does everything we need for finding gear ratios on our RC cars. Thanks for making this app. :-)

Awesome! Easy!. !

Nice App. Great App.

Nice app. I just down loaded this app. Very easy to navigate. It would be nice to have mod 1 pitch. Also a speed chart for comparison. Other than that this is an awesome app for the track. Keep updates coming.

Great Gear Ratio App. Works Great. Very Helpful. Works Great at the Race Track!!!! Later HB

Ratio Calc. Best gear ratio app, hands down!

Simple, clean, perfect!. In a sea of mish-mashed, garbage R/C related apps, this is an aesthetic oasis. It does exactly what you downloaded it for and doesn't give you a migraine in the process. What more do you want? Hmm. Maybe a watch app? Oh yeah, the dude made that too. Excellent work.

Ratio Calc. App needs to be updated!

App for real racers. I wouldn't leave home without it. Gone are all my charts, calipers and notes. Good job guys!

Very nice!. Very good but need to set gear pitch for each car.

Great app. Great app, I only wish it had More

Perfect!. Well done! I love the amount of cars you have in the library. Great tool!

Great simple app. Does exactly what you need it to do; quickly figure out gear ratios and rollout. Saves your individual cars and their settings. Buy this app for gearing, you won't be disappointed.

Perfect!. this app is great, everything you need it to do. The car database is amazing, its so easy to get more cars added you just email in app and days later they add it. In app updates is another major plus!

Fantastic!!. Great place to keep notes and gearing for all your cars. Enough models for every occasion!!! Store multiple cars and compare final drive ratios or roll out for accurate records. Will definitely save money on spent motors and speed controls due to over gearing.

Love it but pls update new models. Great app but please update app to include new kits :-) thanks

This app is great!!. This app will be a big help at the track. I would say that anyone that races and that has an iPhone should get this app

Very useful.. Had all three of my cars. Very helpful.

Awesome app!. Really easy to use

Great tool!. This a fantastic app to have. Just got back into dirt oval racing and finding out rollout and what-if rollouts is great. Saves time and makes it simple.

Sweet app. Great app. rollout chart is great, my only complaint is i would like to select gear pitch for each car. I use 64p on pan cars and 48 on dirt oval

Awesome RC app!!!. Very nicely done & easy to use! I was very surprised to find all the Custom Works cars included - even the new Dominator 2. The tables are great for cross referencing ratios rollout! Great App!!!

Nice app but needs more. Great app and excellent user interface. This is almost a killer must have app. It needs input for battery used and motor specs, then you can calculate speed base on output. You already have rollout, just missing a few pieces.

Great app. This is a great app. Very easy to use.

My go to gear ratio app. Been using this app for years. A must have. They add new cars very quick.

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Great app. I'm giving it 5 stars. It's not perfect, but nothing is. It's got me out of trouble many times at the track.

Awesome. Great reference point for keeping info on my cars

Great App - needs an update though. Not a major issue as plenty of cars have not actually changed their internal ratio, but many will look and wonder where there car is….!

Good. Would get 5 stars if u could attach setup sheets.track data. Ratio charts are great. But once your gearing is there the app is useless.

Fabulous App!!. Excellent app with great database of cars. I manage to find all my cars (15) of them with ease. I was after internal drive ratios which are all there including substitute settings if required. Very happy with the app.

Very happy. Awesome app has every car used at the track

No Mod 1 pinions or spurs... Hi mate, nice app and it looks great, but no calls for Mod 1? Let me know when fixed and I will rate it 5. No good for sc 4x4 trucks like the DESC410r. Cheers

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Very Useful. This app is about as good as it gets. Very functional, without any silliness or distractions. I use it every time I race or tune.

Most Excellent. I use this all the time. Best of the dozens of similar apps I've tried.

Awesome App! MUST HAVE!. I've had this app since the beginning pretty much and have seen the growth the developer has added. This has been invaluable for me at the track and in the backyard!

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