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.




224+ iOS apps curated and reviewed
The best rpm meter apps on iPhone average 4.2★ across 224+ titles — we've ranked them by what real users actually keep on their phones. Updated April 2026.




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.






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.




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 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 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 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.


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.


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 your phone's GPS to display your current speed accurately. It supports multiple units, shows traveled distance, and offers optional city names and a compass. You can also record trip statistics like maximum speed and distance.


Track your speed, distance, and altitude with precision. Features include real-time GPS tracking, trip recording, and a heads-up display for safer driving. Advanced options offer speed limit alerts and picture-in-picture mode.


This app functions as a digital GPS speedometer, offering a comprehensive trip computer to track various travel metrics. It also includes acceleration measurement and a speed limit warning system with a HUD display option.


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.


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.


Control your classic car's ignition wirelessly via Bluetooth. Adjust advance and vacuum curves, monitor real-time engine data, and utilize features like a PIN-code immobilizer and rev limiter. Compatible with a wide range of classic vehicles.


Transform your device into a versatile toolkit with a comprehensive suite of measuring instruments. This app offers a metronome, stopwatch, timer, ruler, level, and various sensors to assist with a wide range of tasks.


This application tracks your speed and distance traveled using GPS. It displays your current speed in kilometers or miles per hour, records trip data, and can alert you to speed limit changes. It also includes a compass and weather information.


This app functions as a sophisticated speedometer, alerting you to speed limit violations with visual and auditory cues. It also provides location sharing, altitude readings, and a GPS black box for trip data. Calculate mileage, costs, and fuel consumption for your journeys.


This app allows enthusiasts to monitor air/fuel ratios and log data directly from an iOS device. It supports various fuel types and offers features like an RPM window switch and anti-theft functionality.