Measure the tilt of your mobile phone on one edge or flat.
A bubble level , spirit level or digital spirit level app is an application designed to check surface is horizontal (level) or vertical (plumb). This bubble level app is simply, clear, handy . Bubble level (Spirit Level) is handy, accurate, simple to use and incredibly useful tool for your Android device.
A bubble level is usually used in construction, carpentry and photography to determine if objects on which you're working on are level. Used properly, a bubble level can help you create flawlessly leveled pieces of furniture, help you when hanging paintings or other items on the wall, level billiard table, level table tennis table, set up a tripod for photographs and much more.
No more sloping tables nor wrong frames.
You can use this app to measure the elevation, roof, shelf - any inclination. It uses accelerometer to help you test (almost) any object for plumb/level. Application can be used by carpenters, stonemasons, bricklayers and other building trades workers, surveyors and metalworkers.