250+ iOS apps curated and reviewed
The best bicycle gear ratio app on iPhone average 3.3★ across 250+ titles — we've ranked them by what real users actually keep on their phones. Updated November 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.0★ (1) | No | No | May 2026 | |
| 2 |  | Free | 3.1★ (7) | No | Yes | Oct 2026 | |
| 3 |  | Free | 5.0★ (4) | No | No | Oct 2026 | |
| 4 |  | Free | 2.0★ (6) | No | Yes | Nov 2026 | |
| 5 |  | $0.99 | 4.2★ (12) | No | No | Oct 2026 | |
| 6 |  | Free | 4.7★ (12K) | No | No | Nov 2026 | |
| 7 |  | Free | — | — | No | Oct 2026 | |
| 8 |  | Free | 1.0★ (1) | No | Yes | Sep 2026 |
Calculate and compare bicycle gear ratios to find the optimal gearing for your ride. Input chainring and cog sizes, and see detailed metrics like gear inches, speed, and more. Customize your setup or choose from presets for easy comparison.
Optimize your bicycle's gearing with this comprehensive calculator. Analyze gear ratios, calculate speed at cadence, and manage custom configurations. Features include component browsing, sharing options, and helpful articles.
Instantly analyze your bicycle's drivetrain performance. Calculate gear ratios, speed at any cadence, and climbing limits based on your bike's components and power output. Ideal for cyclists planning rides or optimizing their setup.
