Best Rpm Meter Apps

SoundTach

RPM from Engine Sound

Free

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.

Giri -The RPM Checker-

by Natural Style Co. Ltd.

Free

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.

Rpm Meter: Calibrate Turntable

Check Speed and Error

Free

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.

SoundRPM: Engine Tachometer

Estimate RPM by sound

Free

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.

Strobe tachometer (RPM meter)

+ Laser Tachometer + Magnetic

Free

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.

Camera RPM Meter - StrobeLight

Camera Tachometer - RPM Meter

Free

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.

RPM - Fidget Spinner Speed Meter

by Konstantinos Vogiatzakis

Free

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.

RPM Dot by SparkEVO

Smart RPM and Speed meter

Free

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.

Strobe Light Tachometer

by Motionics LLC

Free

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.

Speedometer∞

Measure speed on device

Free

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.

RPM Meter for Turntable

No fuss Tachometer

Free

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.

Quick speedometer

The simplest speedometer

Free

This app displays your current speed in various units, along with maximum and average speeds, distance, and altitude changes. It offers a unique windshield reflection mode for easy viewing while driving. The application is designed for simplicity and readability.

Simple Speedometer: Car HUD

GPS MPH, Odometer & HUD

Free

This app transforms your iPhone into a precise GPS speedometer, offering a heads-up display (HUD) for windshield viewing, trip logging, and speed alerts. It supports various units and provides detailed trip data, all while prioritizing user privacy with no ads or accounts.

FAST Wireless Air Fuel Meter

FAST Air Fuel Meter for iOS

Free

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.