Measure speed on car, bike, boat and in the airplane right from your iPhone. Trip Manager - showing current speed, max speed, avg speed, distance, travel time, stop time Support Units KM/H and MPH Bike mode and car mode with 120 km/h to 360 km/h speed range Speed Limit Alarm - Option to set speed limit and get notification alarm when you cross the predefined speed limit. Notice: - Using location services extensively may affect battery power consumption. - GPS is not always accurate due to device hardware sensor limitations. - Data connection is required to see map. - Make sure you have enabled the location service for the application. To enable - Settings > Privacy > Location Services > ON