The best level on Android.

Features:
* High resolution graphics， 5 layouts for different screen resolution.
* Easy to use
* Work with the device’s that only have an accelerometer(less accurate),
* Use Compass to improve accuracy when it is presented on the device.

According 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.

Notice: The figure is for reference only, different devices will have different level of variance
Ads will show up after some use in the free version.