Category
Sports
Platform
iPhone, iPad
Rating
4.5 ★
Size
69 MB
Updated
2026-10-08
Screens
About the app
Ratio Calc is a quick and easy tool for radio control car racers to use trackside. Knowing your final drive ratio (FDR) is very useful for comparison with other racers to…
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Price tracked in the US App Store. In your region it may differ — check before installing.