Best Tachometer Digital Apps

Video tachometer

Strobe light effect, RPM meter

Free

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.

Strobe Light – RPM

Digital Tachometer RPM Checker

Free

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.

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.

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.

Speedmeter mph digital display

Digital HUD Speedometer

Free

This GPS-powered application displays your current speed in a clear digital format, suitable for vehicles, cycling, or walking. It offers offline functionality and provides additional features like trip distance measurement, altitude tracking, and real-time speed limit warnings.

Digital Speed GPS Speedometer

Speedo HUD - MPH KM Tracker

Free

Transform your device into a versatile GPS speedometer and trip tracker. Monitor speed, distance, and altitude during driving, cycling, or walking. Features include a heads-up display and intelligent alerts for speed limits.

Speedometer ∞ GPS Speed

Large Display • Digital HUD

Free

This app provides a simple and beautiful speedometer for iPhone and iPad. It allows users to easily track their speed with an extra-large digital display, functioning as a HUD.

Speedometer : Analogue & Digital

by Kuldeepsingh Saini

Free

This app displays your real-time speed in both analogue and digital formats, featuring an odometer to track your journey. It records average and maximum speeds, allowing you to monitor your travel distance on various vehicles.

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.

Speedometer: Speed Tracker Pro

Digital Mph Meter & Odometer

Free

Track your speed and distance traveled with this GPS-based application. It displays current, average, and maximum speeds, offers a projection mode for windshield display, and includes speed limit alerts. Supports both mph and km/h.

GFGCAM

by Shenzhen City, Zhi Yang Software Co., Ltd.

Free

Access your car's tachograph remotely from your smartphone. Stay updated on your vehicle's latest status and recordings from anywhere, at any time.

GPS Speedometer MPH Tracker

Speed Limit Alert HUD Meter

Free

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.

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.