Estimate engine RPM using your iPhone's microphone without any extra hardware. Ideal for classic cars, motorcycles, and small engines, it provides real-time readings with confidence levels and measurement history.






250+ iOS apps & games curated and reviewed
Whether you're new to engine tachometer or looking for an upgrade, our curated collection of 250+ iOS apps and games has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | 3.0★ (2) | No | Yes | Oct 2026 | ||
| 2 | Free | 3.5★ (8) | No | Yes | Oct 2026 | ||
| 3 | Free | — | No | Yes | Nov 2026 | ||
| 4 | $8.99 | 4.0★ (35) | No | No | Oct 2026 | ||
| 5 | Free | 4.6★ (84) | No | Yes | Oct 2026 | ||
| 6 | Free | 4.3★ (83) | No | Yes | Oct 2026 | ||
| 7 | Free | 4.2★ (281) | No | No | Nov 2026 | ||
| 8 | $2.99 | — | No | No | Sep 2026 |






Estimate engine RPM using your iPhone's microphone without any extra hardware. Ideal for classic cars, motorcycles, and small engines, it provides real-time readings with confidence levels and measurement history.




Measure engine RPM from sound without any tools. Simply point your phone at the exhaust of various engines like motorcycles, cars, or lawn mowers to get accurate, real-time readings. The app automatically filters background noise and indicates signal quality for reliable measurements.


