250+ iOS apps curated and reviewed
If you already know Camera RPM Meter, this is the deeper bench. 250+ rpm reader apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of October 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 2.1★ (37) | Yes | Yes | Oct 2026 | |
| 2 |  | Free | 4.6★ (84) | No | Yes | Oct 2026 | |
| 3 |  | Free | 4.4★ (5) | No | Yes | Oct 2026 | |
| 4 |  | Free | — | No | Yes | May 2026 | |
| 5 |  | Free | 3.1★ (13) | No | Yes | Oct 2026 | |
| 6 |  | Free | 4.4★ (1.7K) | Yes | Yes | Oct 2026 | |
| 7 |  | Free | — | No | No | May 2026 | |
| 8 |  | $1.99 | — | No | No | Aug 2026 |
Measure rotational speed using your phone's camera or a simulated strobe light. Simply mark the rotating object and adjust the settings until it appears stationary to get an accurate RPM reading. The app also functions as a torchlight.
This app uses slow-motion video to create a strobe light effect, allowing you to measure rotational speeds. It records video with detailed information like frame rate and exposure, and offers customizable text overlays.
Measure the speed of any rotating object with precision using your phone's gyroscope or camera. View real-time RPM data on a live gauge and graph, save your measurements, and compare historical readings. Ideal for calibrating turntables and testing various rotating equipment.
