Speedometer is a GPS-based digital head-up display (HUD) app that displays useful speed and distance information. It is designed for use in cars, bikes, motorcycles, and other vehicles. It is also ideal for use in cycling, running, flying, sailing, and other modes of transportation. It is useful for those who want to check the speed of their vehicle or for cyclists who want to keep track of the distance they have traveled.

Speedometer works by using the speed of the earth's rotation. It calculates the speed of the earth in your location and displays it in a digital format on the head-up display. It also displays the speed in a format that is appropriate for your vehicle.

You can also get the accuracy of the speedometer through the app.