Best Engine Rpm Apps

250+ iOS apps curated and reviewed

4.3 avg rating

17 free apps

Updated September 2026

Finding the right engine rpm apps can be overwhelming with so many options. We've analyzed 250+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Compare top Engine Rpm Apps (September 2026)

#	App	Price	Rating	Ads	In-App Purchases	Updated
1	SoundTach	Free	4.2★ (5)	No	Yes	Aug 2026
2	Engine RPM	$8.99	4.0★ (35)	No	No	Sep 2026
3	Acoustic Tachometer	Free	—	No	No	Aug 2026
4	SoundRPM: Engine Tachometer	Free	5.0★ (1)	No	Yes	Aug 2026
5	Giri -The RPM Checker-	Free	3.3★ (11)	No	Yes	Aug 2026
6	RevHeadz Engine Sounds	Free	4.3★ (1.4K)	Yes	Yes	Sep 2026
7	RPM Dot by SparkEVO	Free	—	No	Yes	May 2026
8	VroomScan - Engine Diagnosis	Free	—	No	No	Aug 2026

Top Picks for Engine Rpm

#1

SoundTach by XCARAB INC

RPM from Engine Sound

Editor's Choice

4.2(5 ratings)

FreeIn-App Purchases

SoundTach screenshot 1

SoundTach screenshot 2

SoundTach screenshot 3

SoundTach screenshot 4

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.

#2

Engine RPM by Real-Time Specialties

Acoustic Tachometer

Strong Contender

4.0(35 ratings)

$8.99

Engine RPM screenshot 1

Engine RPM screenshot 2

Engine RPM screenshot 3

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.

#3

Acoustic Tachometer by Jan Sokol

RPM from engine sound

Worth Considering

0.0(0 ratings)

Free

Acoustic Tachometer screenshot 1

Acoustic Tachometer screenshot 2

More Engine Rpm apps to explore

SoundRPM: Engine Tachometer

SoundRPM: Engine Tachometer

SoundRPM: Engine Tachometer

Estimate RPM by sound

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.

Estimate engine RPM from soundSupports 2-stroke and 4-stroke enginesChoose cylinder count and RPM range

free with in-app purchases

Giri -The RPM Checker-

Giri -The RPM Checker-

Giri -The RPM Checker-

by Natural Style Co. Ltd.

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.

Rotational speed measurementNoise removal for accuracySpeed conversion panel

free with in-app purchases

RevHeadz Engine Sounds

RevHeadz Engine Sounds

RevHeadz Engine Sounds

by D.S LONG & SOUNDWAVE CONCEPTS PTY. LTD. & C.G WISE

Experience realistic car and motorcycle engine sounds with interactive controls for gears, brakes, and acceleration. Connect to sound systems for an immersive audio experience. Supports OBD2 connectivity for real-time driving simulation.

Realistic engine sound simulationInteractive gear, brake, and accelerator controlsOBD2 connectivity for real-time driving

🎬 Entertainment

free with in-app purchases

RPM Dot by SparkEVO

RPM Dot by SparkEVO

RPM Dot by SparkEVO

Smart RPM and Speed meter

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.

Smart RPM meterSpeed meter functionalityReal-time vehicle data

free with in-app purchases

VroomScan - Engine Diagnosis

VroomScan - Engine Diagnosis

VroomScan - Engine Diagnosis

Car, Bike & Vehicle AI Scanner

Exhaust Note: Engine Sound Sim

Exhaust Note: Engine Sound Sim

Exhaust Note: Engine Sound Sim

Sound born from firing order

This app synthesizes realistic engine exhaust sounds from scratch, based on the physics of firing orders and cylinder layouts. Explore various engine configurations, adjust muffler settings, and experience dynamic features like pops, bangs, and flames. It also includes a detailed 3D engine animation and driving simulation elements.

Real-time synthesized exhaust soundsAdjustable muffler settingsDiverse engine presets

🎬 Entertainment

Engine Lab: Simulator & Sound

Engine Lab: Simulator & Sound

Engine Lab: Simulator & Sound

Build and hear virtual engines

Engine Sounds: SuperRev

Engine Sounds: SuperRev

Engine Sounds: SuperRev

3D Tuning & Car Simulator

🎬 Entertainment

Decibel : dB sound level meter

Decibel : dB sound level meter

Decibel : dB sound level meter

Audio noise Spectrum Analyzer

Transform your device into a professional sound level meter and audio analyzer. Measure ambient noise, monitor decibel levels, and visualize sound frequencies in real time. It also offers advanced sleep tracking with sound recognition to identify disruptions.

Real-time decibel (dB) sound level monitoringIntegrated Spectrum Analyzer (FFT, spectrogram)Sleep tracking with sound recognition

Toolbox TREMEC U.S.

Toolbox TREMEC U.S.

Toolbox TREMEC U.S.

The Go To Digital Toolbox

This application simplifies driveline setup and predicts performance changes from gear ratios and tire size. It offers tools to calculate vehicle speed and RPM variables, aiding in rig planning and performance expectation.

Driveline Angle FinderRPM CalculatorTire Size Calculator

Engine Layout Decision Making

Mechanic's Best Friend

by Shamim Pirzada

🎬 Entertainment

Chiptuning Multimap

Wireless ACES EFI Control

Wirelessly control your engine's EFI system with real-time data monitoring and instant adjustments. Tune your engine on the fly and review detailed performance logs through an intuitive interface.

Wireless Bluetooth connectionReal-time engine data monitoringInstant tuning adjustments

Dashmazing - OBD 2

Dashmazing - OBD 2

Dashmazing - OBD 2

Real-Time OBD Gauges and more

$9.99 | 100% OFF

Car Driving Car Engine Sounds

Car Driving Car Engine Sounds

Car Driving Car Engine Sounds

#1 Car Driving & Engine Sounds

🎬 Entertainment

FAQ about Engine Rpm

What are the best engine rpm apps for iPhone?

SoundTach tops our engine rpm apps ranking as of September 2026, with a 4.2-star average from 5 App Store ratings, and it's free to download.

Are there free engine rpm apps for iPhone?

Yes — 17 of the top engine rpm apps we rank are free to download, including SoundTach and Acoustic Tachometer.

Does SoundTach have ads or in-app purchases?

SoundTach has no ads and offers in-app purchases, according to its App Store listing as of September 2026.

How many engine rpm apps are on the App Store?

We track 250+ engine rpm apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.

How does SoundTach measure engine RPM?

SoundTach uses advanced audio analysis to detect engine RPM directly from the sound of the exhaust. It automatically filters background noise and verifies harmonics to provide accurate readings without any physical tools or adapters.

What types of engines does SoundTach support?

SoundTach supports a wide variety of engines including motorcycles, dirt bikes, ATVs, scooters, lawn mowers, chainsaws, generators, and even small aircraft engines.