GPS Speedo with HUD, developed by Tinus Apps, is a free travel and navigation app available on Android. It falls under the Maps & GPS subcategory and is the best app for keeping track of your speed.

GPS Speedo is incredibly easy to use - simply set your preferred unit of measurement and you're good to go. The app automatically calculates your average speed and even has a reset function. It supports Miles, Kilometers, and Knots, making it accessible for all users. The app is compatible with all Android devices starting from Android 1.5 and even supports Parrot Asteroid devices.

GPS Speedo with HUD takes things a step further by providing users with the ability to monitor their current, average, top speed, and heading. The Heads-up Display mode allows users to place their device under the windshield to see their speed in the windshield. The actual speed is zoomable and users can change the color by tapping the screen.

Overall, GPS Speedo with HUD is a must-have app for anyone who wants to monitor their speed on the go. It's user-friendly, accurate, and reliable.