26+ iOS apps curated and reviewed
With an average user rating of 3.8★, the rpm classes category is one of the App Store's strongest. Browse all 26+ apps we track, sorted so the most loved ones surface first.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | — | No | No | May 2026 |
| 2 |  | Free | 3.3★ (11) | No | Yes | May 2026 |
| 3 |  | Free | 2.3★ (32) | Yes | Yes | Jul 2026 |
| 4 |  | $8.99 | 3.9★ (31) | No | No | Jul 2026 |
| 5 |  | Free | 4.8★ (39) | Yes | No | Jul 2026 |
| 6 |  | Free | 4.2★ (5) | No | Yes | Jul 2026 |
| 7 |  | Free | — | No | Yes | May 2026 |
| 8 |  | Free | 2.5★ (4) | No | No | May 2026 |
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.
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.
Analyze engine sound to calculate RPM using advanced signal processing. Ideal for engine setup and diagnostics, it supports various engine types and provides real-time feedback for accurate readings.
Measure your vinyl turntable's speed and wow with accuracy using just your phone. Save past readings for comparison and enjoy a modern interface. Supports all common record speeds.
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.
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.
Easily measure the actual RPM of your turntable with this straightforward tachometer. It provides detailed readings including minimum, maximum, and average RPM, along with percentage discrepancy and wow and flutter measurements.
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.
This app helps vehicle carriers find loads, manage deliveries efficiently, and receive prompt payments. It offers features like real-time load searching, claims prevention, and digitized inspection reports to streamline operations.
Stream millions of free songs and podcasts, create personalized playlists, and discover new music. Upgrade for ad-free listening, offline downloads, and audiobooks.
This application connects to a specific engine control unit (ECU) to monitor engine data, read diagnostic trouble codes, and perform various engine tuning adjustments. It also allows for tuning map sharing and accessing cloud-based ECU firmware and calibration files.
Book fitness classes seamlessly, with waitlist visibility. Track your progress towards fitness goals and get expert well-being tips. Access at-home workouts to never miss a session.
