From Michael Heinz:
If every sloping situation of your device misses and indicates that the available gradient. Also small heights indirectly (own calculation from measuring distance and corner can be determined by the integrated scroll ruler also with the help of angular functions).Make your iPhone or iPod to a clinometer or ruler. Test it!features:- single calibration for landscape and portrait format- measuring beginning with horizontal or vertical situation - scroll ruler in centimeter (to 15 cm) or inch (to 6 inches / inch)Tip:Calibrate in respective format before use! This clinometer is no substitute with a professional measuring instrument and can deviate from actual values (depending on built-in acceleration sensors). When you rating the app ,keep fair !