APKPure Appを使用する
Levelの旧いバージョンをダウンロードすることが可能
傾斜角を測定するための精密気泡レベル（ウォーターパス、水準器）
Use your device as a building level to measure the degree of the surface slope. The calibration function makes it possible to achieve high measurement accuracy. This tool will replace your bubble level (spirit level) and help in construction and in the home.
With this tool, you can evenly hang a picture or shelf, install a washing machine or a refrigerator correctly, determine the angle of the floor, measure the angle during construction, and just check the correspondence of the surfaces of the vertical or horizontal plane.
Dark and light themes are available.
There is an instruction for calibration assistance.
Keywords: water level, spirit level, waterpass, building level, measuring angles, horizon.