A free program for Android, by SR Technology.

This Speedometer app is a free, easy-to-use, GPS-based speedometer for Android devices. You can get the most out of this app by converting your speed measurements from kilometers per hour to miles per hour and vice versa.

This app works offline and has no limit on the number of tracks you can add. The app can also show the speed in a variety of other units, including miles per hour, kilometers per hour, nautical miles per hour, and more.

When you start the app, it will ask you to select your location. After that, it will give you a list of the locations you can choose from. Once you select your location, you will be given a map of the area you are in.