# RC-GEAR — Simple measurement of FDR

> Offline calculator for RC car final drive ratios and gear ratio effects. (iPhone/iPad app by WILL PLANT, Y.K..)

- Source: https://appshunter.io/ios/app/rc-gear/id1618154073 (this page in markdown: same URL + `.md`)
- Developer: [WILL PLANT, Y.K.](https://appshunter.io/developer/1616085977)
- Category: Utilities, Productivity
- Price: Free
- Rating: 4.14/5 from 7 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 29 MB
- Languages: English
- Released: 2022-04-08
- Data updated: 2026-08-12
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/rc-gear/id1618154073/reviews.md

## What is RC?

The calculation of the final drive ratio of the RC car is...
[No. of spur gears x No. of Pinion gears x Secondary gear ratio]
You can calculate with the above.

It is very troublesome to calculate every time, so I developed this application which can be used offline.

When set to low gear (high numerical value),
 - Acceleration (rise) is fast.
 - The maximum speed does not increase.
 - The motor load reduces.
 - The running time of the batteries will be longer.

When set to high gear (low numerical value),
 - Acceleration (rise) is slow.
 - The maximum speed increases.
 - The motor load increases.
 - The running time of the batteries will be shorter.

However, please note that some motors and ESC have their own recommended gear ratios.

## Key features

- Offline calculation of final drive ratios
- Spur and pinion gear input
- Secondary gear ratio input
- Analysis of gear ratio effects
- Insights on acceleration and speed
- Motor load and battery life impact

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/rc-gear/id1618154073/reviews.md

### 5/5 — Sooooo handy

*2022-07-28*

Drop down menu and sooo many cars to pick from. 

Glad I got it being new to on road

## Frequently asked questions about RC

### How does RC-GEAR calculate the final drive ratio?

RC-GEAR calculates the final drive ratio using the formula: [No. of spur gears x No. of Pinion gears x Secondary gear ratio]. This allows for quick and easy computation without needing manual calculations.

### Can I use RC-GEAR without an internet connection?

Yes, RC-GEAR is designed to be used offline. This means you can calculate your final drive ratios and analyze their effects anytime, anywhere, without needing a data connection.

### What information does RC-GEAR provide about gear ratios?

RC-GEAR explains how setting to low gear (high numerical value) results in faster acceleration but lower top speed, reduced motor load, and longer battery life. Conversely, high gear (low numerical value) leads to slower acceleration, higher top speed, increased motor load, and shorter battery life.

### Does RC-GEAR have ads?

Yes, RC-GEAR contains advertisements. As a free utility, ads are displayed to support its development and continued availability.

### What devices is RC-GEAR compatible with?

RC-GEAR is available for iPhone, iPad, and iPod devices. It is designed to run on Apple's iOS ecosystem.

### How often is RC-GEAR updated?

The latest version of RC-GEAR is 1.1.1, which was last updated on April 25, 2022. Updates typically address bug fixes and minor improvements.

### What is the age rating for RC-GEAR?

RC-GEAR has an age rating of 4+. This indicates it is suitable for users of all ages, with no mature content.

### Where can I find recommended gear ratios for my RC car?

While RC-GEAR helps you calculate and understand the effects of different gear ratios, it's important to note that some motors and ESCs have their own recommended gear ratios. Always consult your specific RC car's manual or manufacturer guidelines.

## Version history (last 3 releases)

### 1.1.1 — 2022-04-25

[1.1.1]
-Chinese version updated

### 1.0.1 — 2022-04-09

[1.0.1]
 - Fixed minor bugs.

### 1.0 — 2022-04-08

No release notes.

## Apps similar to RC

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [RC AI Mechanic](https://appshunter.io/ios/app/rc-ai-mechanic/id1645671690) | 5.0 (23) | Free | Utilities |
| [BREVE V1.0](https://appshunter.io/ios/app/breve-v10/id6448748065) | — | Free | Utilities |
| [RC Speed Run](https://appshunter.io/ios/app/rc-speed-run/id6446473815) | 4.1 (8) | Free | Utilities |
| [RC Pit Calc Pro](https://appshunter.io/ios/app/rc-pit-calc-pro/id1562268871) | 4.4 (23) | Free | Utilities |
| [RC Speed Calculator Pro](https://appshunter.io/ios/app/rc-speed-calculator-pro/id6445860835) | 4.9 (23) | Free | Utilities |
| [Rollout Calculator - RC DD car](https://appshunter.io/ios/app/rollout-calculator-rc-dd-car/id6451037467) | 4.9 (7) | Free | Utilities |

## More apps by WILL PLANT, Y.K.

- [RC-CAMBER](https://appshunter.io/ios/app/rc-camber/id1616085975)
- [RC-DD ROLLOUT](https://appshunter.io/ios/app/rc-dd-rollout/id1630032562)
- [RC-RECORD](https://appshunter.io/ios/app/rc-record/id1632582465)
- [YOKOICHI APP](https://appshunter.io/ios/app/yokoichi-app/id6444240513)

All apps by WILL PLANT, Y.K.: https://appshunter.io/developer/1616085977

## Related topics

[rc gears](https://appshunter.io/ios/topics/rc-gears) · [rc gear calculator](https://appshunter.io/ios/topics/rc-gear-calculator)

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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 2026-08-12.*