# GearDrive Pro — Gear & Drive System Calculator

> Gear & Drive System Calculator (iPhone/iPad app by Guanghe Xu (tianjin) Digital Technology Co., Ltd.)

- Source: https://appshunter.io/ios/app/geardrive-pro/id6763485586 (this page in markdown: same URL + `.md`)
- Developer: [Guanghe Xu (tianjin) Digital Technology Co., Ltd](https://appshunter.io/developer/1895336115)
- Category: Utilities
- Price: $1.99
- Age rating: 4+
- Requires: iOS 16.0 · 2 MB
- Languages: American English
- Released: 2026-04-28
- Data updated: 2026-05-02
- User reviews in markdown: https://appshunter.io/ios/app/geardrive-pro/id6763485586/reviews.md

## What is GearDrive Pro?

GearDrive Pro is the ultimate gear and power transmission calculator for mechanical engineers. Whether designing spur gears, helical gears, belt drives, or chain drives, GearDrive Pro provides accurate, fast calculations to optimize your designs.

KEY FEATURES:
• Spur & helical gear ratio calculator
• Gear tooth strength (Lewis equation)
• Belt drive length, tension & power
• Chain drive sprocket & pitch
• Planetary gear system analysis
• Torque, power & speed conversion
• Module & diametral pitch calculator

Designed for mechanical engineers, product designers, and engineering students. All calculations run offline with no login required.


## Version history (last 1 release)

### 1.0 — 2026-04-28

No release notes.

## More apps by Guanghe Xu (tianjin) Digital Technology Co., Ltd

- [HydraCalc Pro](https://appshunter.io/ios/app/hydracalc-pro/id6763485334)
- [ConcreteCalc Pro Max](https://appshunter.io/ios/app/concretecalc-pro-max/id6764335469)

All apps by Guanghe Xu (tianjin) Digital Technology Co., Ltd: https://appshunter.io/developer/1895336115

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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 2026-05-02.*