Best Horizontal Accelerometer Apps

208+ iOS apps curated and reviewed

4.4 avg rating

19 free apps

Updated May 2026

Every iPhone needs a few good horizontal accelerometer apps. We benchmark 208+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Top Picks for Horizontal Accelerometer

#1

Horizontal Accelerometer by Takao Ichimura

Automobile measurement tool

Editor's Choice

🔧 Utilities

0.0(0 ratings)

FreeAds

Horizontal Accelerometer screenshot 1

#2

Speedometer 55 GPS Speed & HUD by Stanislav Dvoychenko

Limit Alert,Black Box,Trip log

Strong Contender

🗺️ Navigation

4.8😊(63K ratings)

Free

Speedometer 55 GPS Speed & HUD screenshot 1

Speedometer 55 GPS Speed & HUD screenshot 2

Speedometer 55 GPS Speed & HUD screenshot 3

Speedometer 55 GPS Speed & HUD screenshot 4

Speedometer 55 GPS Speed & HUD screenshot 5

Speedometer 55 GPS Speed & HUD screenshot 6

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.

What We Love

🚀 Accurate GPS speed
👍 Useful features (trip tracking, altimeter, etc.)
🔒 No ads or subscriptions required
👍 Easy to use and reliable

Room to Improve

🐛 Occasional glitches or bugs
🔋 Can drain battery quickly
🚧 Confusing UI or navigation for some users

#3

Accelerometer – G-Force Meter by Jan Halozan

Realtime 3-axis motion data

Worth Considering

🔧 Utilities

4.0(1 ratings)

FreeIn-App Purchases

Accelerometer – G-Force Meter screenshot 1

Accelerometer – G-Force Meter screenshot 2

Accelerometer – G-Force Meter screenshot 3

Accelerometer – G-Force Meter screenshot 4

Accelerometer – G-Force Meter screenshot 5

Transform your device into a precise 3-axis accelerometer. Monitor live acceleration and G-force readings, record motion data, and export it in various formats for detailed analysis. Ideal for experiments, testing, and engineering.

More Horizontal Accelerometer apps to explore

3D Vector Accelerometer

Visualize and measure current acceleration in 3D. Explore different modes to understand gravitational forces or measure g-forces during movement. Ideal for testing vehicle acceleration or understanding rotational forces.

3D graphical vector visualizationAbsolute acceleration modeRelative acceleration mode

All-in-one sensor utility

This utility app transforms your device into a multi-sensor tool. It provides real-time readings for GPS, altitude, speed, barometric pressure, acceleration, magnetic force, sound levels, and light intensity. Visualize data with graphs and maps, mark values, and record sensor information for later analysis.

Real-time sensor readingsGPS, Altimeter, SpeedometerBarometer, Accelerometer, Magnetometer

free with in-app purchases

Speedometer Simple

Speedometer Simple

Accurate GPS speed tracker

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.

Accurate GPS speed trackingMPH, KM/H, and knots supportDisplays traveled distance

🗺️ Navigation

free with in-app purchases

Speedometer with large display

This application displays your current speed in miles per hour, kilometers per hour, or knots. It features a large, clear display with Retina support for optimal visibility. Accuracy is enhanced by adjusting indicator transparency.

Displays speed in mph, km/h, knotsLarge, clear indicatorsRetina display support

🗺️ Navigation

DashCommand - OBD-II Gauges

DashCommand - OBD-II Gauges

OBD-II Dashboards, Scan Tool

Turn your smartphone into a powerful vehicle monitoring and diagnostic tool. Track engine performance, fuel economy, and instantly diagnose check engine lights. Features advanced dashboards for performance analysis and off-roading.

Customizable vehicle performance displayEngine and vehicle data loggingRead and clear check engine lights

free with in-app purchases

Toolbox - Smart Meter Tools

Toolbox - Smart Meter Tools

Best Measuring Tool Box App

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.

MetronomeStopwatchTimer

free with in-app purchases

Physics Toolbox Sensor Suite

Physics Toolbox Sensor Suite

Sensor Data Visualization Tool

This app turns your smartphone into a scientific instrument suite, enabling measurement, recording, analysis, and export of real-time sensor data. It offers tools for kinematics, acoustics, light, magnetism, and more, suitable for students, educators, researchers, and hobbyists.

Real-time sensor data measurementData recording and analysisData export functionality

free with in-app purchases

HUD, Speed Limit, Odometer

This GPS-based app displays your current speed and provides a HUD mode for safe driving. It also shows road names, weather, speed limits, and tracks trip distance and average speed in various units.

GPS SpeedometerHead-Up Display (HUD) modeSpeed Limit notifications

by Tail Light, LLC

Track vehicles with real-time GPS, receive instant accident alerts, and monitor driving behavior. It also provides vehicle health diagnostics to proactively address potential issues.

Real-time GPS vehicle trackingInstant accident notificationsDriving behavior insights (speed, braking)

Accelerometer ∞

Accelerometer ∞

Device Motion Visualizer

Visualize device motion data in real-time with dynamic graphs. Analyze sensor information, calibrate your device, and explore various possibilities. This utility app offers a unique perspective on your device's movement.

Real-time motion data visualizationStunning graph displaysSensor calibration

free with in-app purchases

Speedbox Digital Speedometer

Speedbox Digital Speedometer

HUD Display GPS Speedometer

This free GPS-based app functions as a digital speedometer and head-up display. It shows current speed, average speed, maximum speed, and road information. It also provides slope data and weather conditions, with optional HUD mirroring for windshield reflection.

GPS Speedometer (MPH, KMPH, KNOT)HUD Display (Mirror Mode)Slope and Ascent/Descent Display

Speedmeter mph digital display

Speedmeter mph digital display

Digital HUD Speedometer

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 HUD speedometerOffline trip distance measurementApple Watch integration

Garmin Drive™

by Garmin International

Enhance your Garmin navigator or dash cam experience with real-time traffic, weather, and parking information. Access camera controls, settings, and recorded footage, with the ability to sync multiple dash cams for comprehensive video coverage.

Real-time traffic and parking dataAdvanced weather forecastsPhotoLive traffic camera access

🗺️ Navigation

Physical Phone Experiments

Unlock your phone's sensors for scientific exploration. Conduct pre-built experiments or create your own using accelerometers, magnetometers, and more. Analyze and export data in various formats for further study.

Pre-defined experimentsData export (CSV, TSV, Excel)Web-based remote control

OBD2 Car Scanner - EOBD Facile

OBD2 Car Scanner - EOBD Facile

Torque ELM327 Diagnostic Tool

Transform your smartphone into a professional car diagnostic tool. Read and clear engine fault codes, monitor real-time sensor data, and perform advanced diagnostics without a mechanic. Supports a wide range of OBD2 compliant vehicles.

Read and clear engine fault codesMonitor real-time sensor dataTurn off check engine light

free with in-app purchases

Measure speed on device

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.

Digital GPS speedometerTrip computer (speed, distance, time)Acceleration measurement

🗺️ Navigation

Accelerometer Visual

Accelerometer Visual

Visualize the real-time motion data from your device's accelerometer. See how your phone moves in a graphical representation. This tool is designed for understanding sensor behavior.

Graphical accelerometer displayReal-time motion visualizationSensor behavior analysis