This app, uses your compass sensor to display angles and such.
This app is a handy way of checking levelness of floors, walls, picture frames, windows, etc...

Installing this app to your phone makes it very portable. No extra tools to carry.

Great for on the spot checks to keep from having to run to the truck or shed for a level.

You can check level at both 0 and 90 degrees.

You can create frames by adjusting your device to 45%.

You can also check roof pitches and ladder pitch to code. 75% ladder pitch is code.

Best results by using the flat side of your phone or tablet.

Thank you, for your support and be safe out there.