iAccel vs Cuspart

iAccel is a performance meter designed to test the acceleration and braking performance of your vehicle. In use it displays a series of gauges to monitor performance and a continual graph of selected parameters. When performing a test the results can be displayed on screen and are stored in a CSV file for easy export if further analysis is required. In addition to brake testing, 0-30 and 0-60 mph acceleration tests are available together with their metric equivalents. Standing ¼ mile acceleration, standing 400 m, 0-80 mph and 0-120 km/h tests together with EDR and Crash modes are available as an upgrade to the Pro version. iAccel also has a continual recording mode which simply records the data to a CSV file received while the device is operating. To avoid running of of space continuous recording is limited to 5 minutes in the Pro version and 20 seconds in the Free version. If you run over this time, the device will continue to record the last 5 minutes (20 seconds) of data and delete older data unless the AutoStop option is selected in the settings. A calibration check feature is also available in the Pro version so you can check and record to a file the accuracy of the accelerometers. To use the app, your iPhone should be mounted in the vehicle with the long edge of the phone perpendicular to the direction of travel. The device doesn't have to be perfectly level, approximately level is fine. Drive to the area where the test is to be performed and start the app. This launches the test screen and automatically calibrates the device to the gradient at that location. The Reset button can also be used to recalibrate the device at any time and is best performed when the vehicle is stationary. This avoids any bumps in the road distorting the calibration. You can change the type of test you want to perform using the Select Test screen which can be accessed by pressing the Menu button. For Brake and Acceleration tests press the Arm button when you are ready to begin the test and perform the test. You can press the Arm button at any time, even when the vehicle is in motion. The results will be displayed automatically once the test is complete and includes two seconds of data prior to the start of the test and a short time after the test has finished. The limits of the test are highlighted on the result graphs. For Continuous type tests, press the Start button to start recording and press the Stop button to stop. Continuous test results are not displayed automatically but results can be displayed from the Files options accessed by pressing the Menu button. For ease of use, double tapping the Speedometer duplicates the effect of pressing the Start / Stop button. Double-tapping the left-hand gauge duplicates the Day / Night button and double tapping the right-hand gauge duplicates the Reset button. Tapping on the graph, cycles the display between acceleration, speed, orientation, rate of rotation and magnetometer. More detailed information on the operation of iAccel is available from the Information page in the app. The app uses a combination of GPS, accelerometer and other sensors and is only accurate when the device is operated correctly and all sensors are receiving suitable signals. Please note that continued use of GPS can dramatically decrease battery life. This app is designed for use off-road and any performance testing should only be performed off the public road network. At all times you must comply with all traffic regulations applicable to your location. J Neades can accept no liability for any injury, loss or damage which may occur while using this app.

Turn your iPhone into a customizable GPS speedometer for everyday driving, performance testing, and clear real-time driving data. Cuspart: GPS combines live GPS speed tracking, automotive-inspired gauges, HUD mode, drive history, acceleration tests, and detailed trip records in one focused dashboard. LIVE GPS SPEEDOMETER • View your current GPS-based speed in km/h or mph • Monitor maximum speed, average speed, heading, distance, duration, and live telemetry • Choose from 26 automotive-inspired gauge designs • View your speed data alongside a live map • Enjoy smooth needle animations and clear digital readouts • Configure the dashboard around the information you want to see PERFORMANCE TESTING Measure acceleration and distance-based performance with built-in tests: • 0-60, 0-100, and 0-200 km/h • 60-100 and 100-200 km/h • 0-60, 0-100, and 0-130 mph • 40-60 and 60-130 mph • 100 m, 200 m, 400 m, and 1,000 m • 1/4 mile, 1/2 mile, and 1 mile Save completed results and review your recorded performance over time. DRIVE HISTORY Review your recorded drives with: • Route maps • Speed graphs • Distance and duration • Maximum and average speed • Saved acceleration results • Today, weekly, and all-time history filters • Detailed summaries for recorded sessions HUD MODE Switch to a clean, high-contrast heads-up display with a large live speed readout. Mirror or rotate the HUD to suit different mounting positions and windshield setups. CUSTOMIZE YOUR DASHBOARD Make Cuspart: GPS your own with: • 26 automotive-inspired gauge designs • Multiple needle styles • Customizable digital fonts • Light, dark, and system appearance modes • Customizable accent colors • Alternative app icons • Configurable gauge telemetry • Flexible dashboard layouts CUSPART: GPS+ Cuspart: GPS is free to use, and the core features are available without a subscription. Cuspart: GPS+ is an optional subscription that unlocks additional premium features and an ad-free experience while your subscription is active. Premium features include access to the full gauge collection, detailed speed charts, and additional dashboard customization options. Cuspart: GPS+ is available through monthly and yearly auto-renewable subscription plans. The subscription period and localized price are displayed in the app before purchase. Payment will be charged to your Apple Account when you confirm your purchase. Your subscription renews automatically unless canceled. You can manage or cancel your subscription in Settings > your name > Subscriptions. If you cancel, access to GPS+ features continues until the end of your current paid period. GPS ACCURACY & SAFETY Cuspart: GPS uses GPS and other available device location data to provide speed, distance, route, and performance information. Results may vary depending on your device, GPS signal quality, location, surroundings, and other conditions. Performance measurements are provided for general informational purposes and are not certified timing results. Set up the app and any performance test before you begin driving. Secure your iPhone appropriately, keep your attention on the road, follow local traffic laws, and never interact with the app while driving. Use acceleration and performance testing only in safe and lawful conditions. PRIVACY POLICY https://www.cuspart.com/cuspart-gps-privacy-policy/ TERMS OF USE https://www.cuspart.com/cuspart-gps-terms-of-use/