100% ad-free, doesn't require data/cell connection to work.

DigiHUD Speedometer is a free GPS based digital head up display (HUD) that shows useful speed and distance information for your journey. Ideal if your vehicle speedo has died, you want to verify your vehicle speed or you just want to know your speed when cycling, running, flying, sailing etc.!
The display can be switched between normal viewing and HUD mode which mirrors the display for viewing as a reflection in a vehicle windshield (most useful at night, depending on the device's brightness).