The 2 in one app that acts as a gyroscope and accelerometer. Measures: 1) the flatness of a surface 2) changes in location in all planes. 3) measures vibrations and shakes. 4) Plots a graph of the level of movement. 5) Records and measure the shakes. 6) Customizable sensitivity in level of shaking. 7) Potential use to measure shakes in a clinical setting e. G.