Developer's DescriptionBy Hot Android Apps & ToolsThis app turns your smartphone into a bubble level (spirit level).This app turns your smartphone into a bubble level (spirit level).With 4 different viewing options, this level can calibrate with all 4 sides as well as show the angle and slope in percentage or roof pitch. Comes with several sound effects and orientation locking.Bubble level works with:Samsung Galaxy, HTC, Motorola, Xiaomi, Huawei and Sony.