83+ iOS apps curated and reviewed
The best strobe rpm apps on iPhone average 4.2★ across 83+ titles — we've ranked them by what real users actually keep on their phones. Updated August 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.3★ (83) | No | Yes | Aug 2026 |
| 2 |  | Free | 4.2★ (255) | No | No | Aug 2026 |
| 3 |  | Free | — | Yes | No | May 2026 |
| 4 |  | Free | 4.6★ (84) | No | Yes | Aug 2026 |
| 5 |  | Free | — | Yes | Yes | Aug 2026 |
| 6 |  | Free | 2.3★ (32) | Yes | Yes | Aug 2026 |
| 7 |  | Free | 4.4★ (1.7K) | Yes | Yes | Aug 2026 |
| 8 |  | Free | — | No | Yes | May 2026 |
Measure rotational speeds of objects using your phone's flashlight, laser, or magnetic sensor. Detect precise RPMs with adjustable flicker frequencies and a wide measurement range. Ideal for analyzing fan speeds, engine RPMs, and more.
Transform your iPhone into a powerful strobe light and tachometer. Precisely control flashing speeds from 1Hz to 130Hz to measure the RPM of rotating objects by making them appear stationary. Ideal for precise speed measurements in dark environments.
This application transforms your smartphone into a digital tachometer using its flashlight. It measures the rotational speed (RPM) of objects by flashing light at them, making them appear stationary when the flash rate matches their speed. Save readings and use it for mechanics, education, or industrial checks.
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 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 measures the real-time speed accuracy of your turntable, displaying variations like wow and flutter graphically. It helps you identify and correct speed inconsistencies for optimal audio playback. Features include a history log and a unique visualization of inaccuracies around the vinyl center.
This application functions as a smart RPM and speed meter, providing real-time data for users. It offers a digital display of vehicle performance metrics. The app is available for free with an optional premium subscription.
Calculate lathe RPM based on material, designation, and tool type. Supports a wide range of materials and allows for unit changes. Simply input your work diameter to get the RPM value.
Transform your device's flashlight into a dynamic strobe light. Easily sync with friends' devices for a coordinated light show, with adjustable frequencies and customizable patterns.
This tool measures the rotational speed of motors, ideal for hobbyists working with drivable model cars. It features noise removal, speed conversion, and a memo panel for recording measurements. Customizable skins add a personal touch to the user experience.
This app uses your device's camera to measure the speed of a fidget spinner in revolutions per minute (RPM). Follow simple setup steps with aluminum foil and your camera's red circle to get accurate readings. Compete with friends and share your high scores on social media.
This utility app provides a super bright full-screen flashlight, strobe light, and safety light. Customize color, brightness, and strobe rate for various uses, including photography and emergency signaling.