This app provides a camera button always on the top of the screen! Whatever you are doing (playing games, surfing the internet, or use any other apps) on the phone, you can click this float button to launch the camera, and then have a quick shot. It is really on the top of anything. Never miss any scene that is worth capturing.
You can change appearance of the camera button icon, such as size, transparency, auto hide. Drag and drop it to change its position.