Android applications which prompts you to select a shape (circle, square or triangle), then select the size of this shape. When you press "draw", the outline of the shape is drawn on the screen of size that you selected before. If you press on the outline of the shape, the mobile phone starts to vibrate. The app also recognizes gestures. If the user drags with two fingers on the screen to the left, the app goes into previous screen. Tf the user drags with three fingers down, the app exits.