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). 
DigiHUD can open as a floating window on top of other apps or your homescreens. Works with external GPS receivers (tested at 10Hz). 

Although we strive to make all readings as accurate as possible they are only as accurate as your device's GPS sensor and should only be regarded as approximations.

For more than a dozen extra features, with many more planned, try DigiHUD Pro (link at the bottom of this description).

Information displayed
Current speed (choose MPH, KMH or KTS)
Average speed, since reset
Maximum speed, since reset
Three Trip distance counters
Compass
Odometer (found under Statistics)
Current time
Digit color changes to red when above your set warning speed
Battery level indicator
Satellite lock status icon

Using DigiHUD
Lite Mode (speed only) - swipe the speed left or right. Swipe again to return
HUD Mode (mirrored) - swipe the speed up or down. Swipe again to return
Touch the trip counter to cycle through the three counters
Long-pressing on a speed or trip value will reset it
Long-press the speed unit to choose between MPH, KMH and KTS from the popup menu (also in the Main Menu)

When in window mode touch the DigiHUD icon for a menu to switch to the fullscreen app or exit. The window can be re-sized using the corner drag handle.

All values can be reset by long-pressing "PAUSE RESET" (the Odometer reading in the Statistics popup won't reset and counts the total distance since the application was installed or it's data was cleared). 

Main Menu
Opened by touching the speed displayed in the center of the screen, the menu allows you to:
Exit DigiHUD
Window/Background Mode: Close and open as a re-sizable floating window
HUD view / Normal view: Switch between HUD (mirrored) and normal displays
Speed Unit: Change between MPH, KMH or KTS
Set Warning Speed/Sound: The speed at which the digit color will change to red. An audible alert can also be enabled here
Brightness: Adjust the screen brightness
Display Color: Choose from 10 customizable colors. Almost every color is available except black
Lock screen rotation: keep the screen in its current rotation even if the device is rotated 
Display Preferences: enable/disable screen elements
Statistics: odometer, trip distance, top speed and average speed and version number
Help: show help and other information

*This application requires the use of the GPS receiver, which may increase battery usage.*

The screen will not turn off during long journeys and works in landscape or portrait mode.

Privacy policy.
Please review the Privacy Policy within the app or at http://digihud.co.uk/blog/2018/12/privacy/. 

If you have any problems using DigiHUD please check the troubleshooting FAQs, or Contact Us.

GPS digital speedometer with head-up display (HUD) for phone or tablet.