A free program for Android, by Tech Brain Apps.

Bubble Level Tool: Level Meter is a free application for measuring the level of objects. You can measure the angle of the slope of the ground or the roof, or even the air.

This app will be very useful for people who need to know the level of the ground, the roof, or the air. It can also be used for people who need to know the angle of the slope of the ground or the roof.

This app is very easy to use. First, you have to install this app on your device. Then, you have to go to the location you want to measure. After that, you have to tap the button “Start” to start measuring. Then, you have to tap the button “Angle” to get the angle of the slope of the ground or the roof.