Health & Fitness · Open source
CubeTimer
Danilo Lutz
Offline 3×3 speedcubing timer with TNoodle scrambles
Opens the official F-Droid page
About CubeTimer
CubeTimer is a focused offline timer for 3×3 speedcubing.
It generates random-state scrambles with a local port of TNoodle-lib, the WCA scramble program. The cube map updates to match every scramble, so you can inspect the state before starting.
Features:
- Tap-to-start and tap-to-stop timer.
- Random-state 3×3 scrambles generated offline.
- Cube map synchronized with the displayed scramble.
- Local history of up to 200 solves.
- Best, worst, mean, ao5, ao12, best ao5, and best ao12 statistics.
- Delete a solve with undo, or clear the history with confirmation.
- Solve detail card and PNG sharing.
- Light and dark themes.
CubeTimer has no account, ads, analytics, or Internet permission. Solves remain on the device. A shareable PNG is created only when you request sharing through Android's share sheet.
What's new in 1.0.5
Keep the screen on while the timer is running. Restore normal screen timeout when the timer stops.
How to install CubeTimer
- Tap Download — the app's official page on F-Droid opens.
- Install it with the F-Droid app (recommended, for automatic updates), or use the download button on that page.
- If Android asks, allow the F-Droid app or your browser to install apps, then tap Install.
- Open CubeTimer from your app drawer.



