Roam

A GPS speedometer for Android that treats your OLED with respect.

Most people who want a speed readout in the car just open Google Maps and leave it on. That works, but hours of a bright, static UI is exactly how OLED panels burn in. Roam shows one thing, your current GPS speed, on a pure black screen, and is built from the ground up to leave no trace on your panel.

How it protects your screen

• The readout moves. Every few minutes (1 to 10, your choice) the speed display glides to a new position. Positions are chosen so consecutive spots land far apart and the whole screen gets used evenly over a drive.
• Pure black background. On OLED, black pixels are off. Only the digits are lit.
• Colour drift. The digit colour slowly shifts hue so no single subpixel carries the whole load.
• Outline digits. Optional hollow digit style that lights a fraction of the pixels.
• Brightness control. Dim the display from inside the app without touching system settings.

The rest

• Current speed in km/h or mph, plus a session max
• Screen stays awake while the app is open
• No ads, no tracking, no network access at all. The only permission is location, used for GPS speed.
• Tiny: the APK is well under 100 KB

Install

Grab the latest APK from Releases, or build it yourself:

./gradlew assembleDebug

Requires JDK 17+ and the Android SDK.

Releasing

Tag a version and push it. GitHub Actions builds the signed APK and AAB and attaches them to a GitHub release:

git tag v1.1.0
git push origin v1.1.0

License

AGPL-3.0