Bubble Level + Compass for Android

11 things about Bubble Level + Compass

1. The tool is normally included in my astronomical app (Polar Scope Align Pro) where it has some extra functionality (night mode, watch version), but I decided to release it as a separate free app because I could not find anything with the features I wanted on the app store.

2. Advanced features are included, such as calibration for the surface level to work with your phone's case/camera bulge etc.

3. A bubble/spirit level tool with horizontal, vertical and surface angle measurements, as well as a true-north compass.

4. -Bull's eye level with surface angle reading, horizontal/vertical levels with angle readings (0.1 degree steps).

5. -Gyro calibration to compensate for lens bulges or uneven cases when using the phone as a bubble/spirit level.

6. -Magnetic declination reading, which shows the offset between magnetic and true north for when you want to use a physical magnetic compass (requires access to your location).

7. There is also an ad-free Pro version with more features like Apple Watch support, night mode", pitch/yaw/roll rotation rate.

8. -Magnetometer (compass) calibration level display.

9. -Compass with north heading reading in direction and degrees.

10. -Accelerometer/Gyro switch in case one of the two works better on your phone (Gyro is default).

11. If you enjoy it, feel free to leave a review.