I have found that the level accuracy varies from phone model to phone model. Generally higher quality or """"""""""""""""more expesive"""""""""""""""" phones are much more accurate and reliable. My friends Samsung note 5 was significantly more sensative and accurate over my htc desire 510. Other then that it is an excellent software. So if your readings are inaccurate its most likely your phones gyroscope and internal accelerometer""
August 01 2015