I searched for a free Android app that can be used as a simple black board for drawing quick sketches and taking casual handwriting notes, just a white brush on a black board, no status bar, no ads, no color picker, no eraser, no any other advanced features. I didn't find a single one! So, I created one for myself and for anyone who may be interested. Here it is. Features: -Touch screen to draw. -Rotate device to erase. -Press and hold Home+Power buttons to save your drawing. (*) Works on Android 2.2 and higher. No special permissions required. Tested on my Samsung Galaxy S5. (*) This feature is not a part of the app, it's the Take Screenshot feature of your device. Refer to your device's user manual for the proper buttons combination.