Clinometer + bubble level (com.plaincode.xclinometer) on Google Play
The best and most accurate level Android. This is the first version, that has a unique two way calibration! With that you can calibrate your device even on non-level surfaces.We will support this product long term and add more features!This product does not display Ads!2.0 additions✔ High resolution graphics✔ Redesigned (modern) app navigation✔ New theme with slim frame (previous still selectable)✔ New Unit Mode 1V:H common in engineering✔ Rooftop Mode now labelled :12✔ Two optional features as in app purchases: Camera mode and Relative AngleAccording to wikipedia: An inclinometer or clinometer is an instrument for measuring angles of slope (or tilt), elevation or inclination of an object with respect to gravity. It is also known as a tilt meter, tilt indicator, slope alert, slope gauge, gradient meter, gradiometer, level gauge, level meter, declinometer, and pitch & roll indicator.