What’s new
New option for offset angle
Quick answer
Spirit level and ruler
F-Droid repository metadata
With Bubble you can measure angles and inclination.
Simply align one of your phone's four sides with an object or place it on a level surface to determine its orientation.
A ruler in cm and inches is also available.
Experience a user-friendly and ad-free solution with no permissions required.
Screenshots
How to install
- Download the APK from the button at the top of this page.
- Allow “Install unknown apps” for your browser or file manager only, not for every app.
- Open the downloaded file and confirm the installation.
- If installation fails with “App not installed,” remove an earlier build of the same app first. A signature conflict is the usual cause.
Data safety
- Every file is checked against its published SHA-256 before it is listed.
- Files are scanned for malware on every update.
- The permissions each app requests are listed on its own page.
- Read the full safety policy for how we test, flag, and delist files.
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