Measure the time from 0-60 mph or 0-100 km/h of your vehicle or use the app as accurate GPS speedometer.
Only SprintBox provides these features:
▶ Automatic LAUNCH CONTROL: the time measurements starts automatically, when the accelerometer of your iPhone notices the sprint started
▶ Adjust launch control according to the performance of your vehicle
▶ Manage all your vehicles and see the average sprint time
▶ History of all done measurements with timestamp sorted by vehicle or date of measurement
▶ Mark road conditions (wet/dry) for sprint