This app blocks hand touches to prevent malfunctions when using a stylus pen such as a Galaxy Note or Galaxy Tab. Conflict with other accessibility apps may occur, so please use it alone as much as possible. In the case of OneNote, you need to activate the application after running it in the inactive state (touch enabled) for it to work properly. (I don't know why, but if touch-related accessibility is enabled when OneNote is running, the stylus function is disabled. It doesn't seem to matter