A free program for Android, by James Moss.

DigiHUD Speedometer & GPS Tracker is a free and easy-to-use head-up display (HUD) app for your car, bike, or any other mobile device. It displays speed and distance information in the form of numbers, arrows, and text on the screen, making it easy to read even in the most stressful situations. It is a GPS-based app that uses the GPS sensor in your device to calculate the speed and distance of your journey. It can be used as a standalone speedometer or as a speed and distance tracker that uses your device’s built-in GPS sensor.

The app can display information in the form of numbers, arrows, and text on the screen. It can be used as a standalone speedometer or as a speed and distance tracker.

The speed and distance information is calculated based on the location of your device.