102+ iOS apps curated and reviewed
Every iPhone needs a few good gates belt drive apps. We benchmark 102+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 2.7★ (21) | No | No | Sep 2026 | |
| 2 |  | Free | 3.5★ (6) | No | No | Oct 2026 | |
| 3 |  | Free | 3.4★ (10) | No | No | Oct 2026 | |
| 4 |  | Free | — | No | No | May 2026 | |
| 5 |  | Free | — | No | No | May 2026 | |
| 6 |  | Free | 4.5★ (2) | No | No | May 2026 | |
| 7 |  | $1.99 | — | No | No | Aug 2026 | |
| 8 |  | $1.99 | — | No | No | Jun 2026 |
This app uses your phone's microphone to measure the sonic vibration frequency of a belt drive. It helps you determine if your bicycle belt tension needs adjustment by comparing the frequency to a provided chart. It also offers a calculator for bicycle belt drive parameters like speed ratio and center distance.
This app provides engineers and maintenance specialists with access to industrial drive design tools and product data on their mobile devices. It offers modules for designing belt drives, managing facility maintenance, and measuring belt tension, speed, noise, and distance.
This application provides a comprehensive diagnostic tool for belt drive systems. It measures key parameters like pulley speeds, belt frequency, tension, and system geometry to ensure optimal performance, energy efficiency, and extended service life.
