【實用工具app】Vmax GPS Speed Box|最夯免費app-綠色工廠好玩App

Vmax GPS Speed Box - The Ultimate Speed AppThis iPhone/iPad app can measure the performance of your car. You can choose between the following measurements:•Tachometer•0-50 mph•0-60 mph•0-125 mph•60-125 mph•1/4 mile•1/8 mile•Vmax (maximum speed)The measurements can be stored on your device.Some Information to receive a precise measurement: To start the measurement, the vehicle must be stopped! The measurement should be performed on a flat road with no major climbs. Your device should be positioned in a holder or lying exactly in the same direction. If the start-button is enabled, you can accelerate. The measurement will start automatically. The measurement is completed automatically when the selected target speed or distance is reached. The data can be stored locally on your device.Warning, this app uses continuous background updates. This may shorten the battery life.