# RC Speed Calculator Pro — user reviews

> 10 indexed App Store user reviews of RC Speed Calculator Pro by Degree3, Inc., rated 4.90/5 from 23 ratings.

- Source: https://appshunter.io/ios/app/rc-speed-calculator-pro/id6445860835/reviews
- App overview in markdown: https://appshunter.io/ios/app/rc-speed-calculator-pro/id6445860835.md
- Rating breakdown: 5★ 20 · 4★ 3 · 3★ 0 · 2★ 0 · 1★ 0

## Most critical reviews (10 lowest-rated)

### 4/5 — Gear Ratio for the Arrma Felony

*2024-11-26*

I like the setup and it is pretty spot on. It helps to gauge where you speed and calculations are at to predict your results. Only not 5stars is because it doesn’t have a voltage cell option to put in. For example 3S fully charged is 12.6 it automatically factors in the voltage for 11.1 at 3.7v per cell.

### 4/5 — Great app! Gearing and mph made easy.

*2023-08-10*

Simple and easy.

### 4/5 — App is very good!!

*2023-05-20*

I would like to see you be able to add the weight of the car also but otherwise good

### 5/5 — Love this app!

*2025-02-08*

This app really helps you when dialing in your setup and it’s pretty accurate.

### 5/5 — Useful app

*2024-10-06*

Great app for calculating rc gear speed

### 5/5 — Helpful/ would recommend

*2024-04-13*

Very helpful in the tuning process

### 5/5 — Great app

*2024-03-24*

This app rocks, best app out there.

### 5/5 — Great little app!

*2024-03-23*

Found this to be very helpful and also surprisingly accurate!

### 5/5 — Very Handy

*2023-10-24*

I have been doing a couple of builds and this came in really handy to work out how I gear my car.

### 5/5 — Easy to use and accurate

*2023-07-09*

Tested using GPS, the results this app calculates are accurate. 

The app is easy and quick to use.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-27.*