This is a simple app for device testing. You can easily check the status of the touch panel and use it to such as confirmation of multi-touch. Since disappearing moderately It is also ideal for graffiti. This app communication does not perform at all. [How to use] · When the screen to touch the circle will be drawn. · Touch at the point there is a state, press the volume up button and it will be clear. Even if the rotation of the screen will be cleared. · The touched point in the absence and