Lock Screen

Lock Screen app is simple utility to turn off screen, instead of having to press the power button. Just touch to lock.
Sometimes difficult to press the power button, or you want to preserve the physical power button. Lock Screen app can help you minimize the use of the power button anytime, anywhere.
Moreover, you can choose sound to lock the screen. That's cool.

"This app uses the Device Administrator permission." You need to enable Administration before it can be used it.