MultiTouch Visualizer 2

★★★★★ Xperia arc s Picks up four fingers. Great we app to test phones multi touch capability.

★★★★★ Droid razr maxx 10 points

★★★★★ Great! Good apparently has 8 touch points on LG g2x

★★★★★ Works perfectly Does what it says! Good app this one

★★☆☆☆ Buggy. This application looks pretty but it incorrectly interprets multi-touch pointer events being sent by the system. On some devices, touch two fingers, release just one finger, then notice both touch points vanish suddenly. The touch data is fine but the application got confused. I recommend that the author take a good look at the documentation on MotionEvent, specifically ACTION_POINTER_DOWN, ACTION_POINTER_UP, getActionMasked(), getActionIndex(), and getPointerId(). Note that pointer ids are quite different from pointer indices and they are not necessarily contiguous. This application also displays the touch size incorrectly. Ideally it should use getTouchMajor() and getTouchMinor(). If your phone has Ice Cream Sandwich, then it already contains a built-in diagnostic tool. Try enabling Pointer Location in Development Settings.

★★☆☆☆ Only 2 points? I'm not sure if it needs to be reconfigured but the app crashes when I open settings. Only supports 2 fingers