Double Tap 2017 description

This application is the best solution On-Off screen

For all smartphones:
+ Double Tap home screen to turn off screen.
+ Cover proximity sensor to turn on screen.

For new Samsung Smartphone as S7,S7E android Nougat
+ Double Tap power icon to turn on screen.

This application need to be enabled in Accessibility to use service of system..
It will save battery, support unlock by fingerprint.

If you have any problem please give us some comment, we'll improve it.
Thank you very much!