This app turns off the screen but keeps your device awake. With this feature, you can do things like - Playing a video or streaming service with the screen off - Running an auto-play game with the screen off - Staying connected with the screen off when copying large files over a USB connection from your PC - Another good idea Once adding a button to the quick settings panel (pulling down the status bar), quickly and easily turn off the screen with an app running, and swipe the screen to get back to the running app. Keywords: playing with screen off, black screen, keep device awake