56+ iOS apps & games curated and reviewed
Looking for free ratio gear apps and games? 14 of our 56+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 2.2★ (5) | No | Yes | Aug 2026 | |
| 2 |  | Free | 3.0★ (1) | No | Yes | May 2026 | |
| 3 |  | Free | 2.5★ (2) | No | No | Oct 2026 | |
| 4 |  | Free | — | No | No | May 2026 | |
| 5 |  | Free | 5.0★ (2) | No | No | Jul 2026 | |
| 6 |  | Free | 4.0★ (1) | No | No | May 2026 | |
| 7 |  | $4.99 | — | No | No | Oct 2026 | |
| 8 |  | $1.99 | — | No | No | Aug 2026 |
Calculate and visualize gear ratios for road bikes and MTBs. Simulate optimal gear combinations with various chainwheels, sprockets, and tires. Helps in selecting replacement parts by displaying speed-cadence graphs and gear ratio charts.
Calculate essential mountain bike gearing metrics like gear ratios, gear inches, and gain ratios. This tool helps cyclists understand and optimize their bike's performance.
Calculate your vehicle's top speed for each gear using transmission ratios, differential gear ratio, and rev limit. Optimize your car's gear ratio for track performance or drag racing, choosing between kmh and mph units.
