Ratio Calc! App Reviews

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.

Great app but please update app to include new kits :-) thanks

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.

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

Youve done a great job with this app !

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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 wont be disappointed.

I wouldnt leave home without it. Gone are all my charts, calipers and notes. Good job guys!

Great app for on the track setups, its an absolute must for the average to the pro racer!!!

Been using this app for years. A must have. They add new cars very quick.

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 doesnt 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.