I Lock

* I Lock
The app helps the user lock screen without setup too many steps.
*The No.1 screen off application easy to use, very simple in Google Play Store.
** No need to introduce too much. Let install it, open it and enjoy it
** This app uses the Device Administrator's permission.
** 5-star rating if you like it, if don't like it please give me a comment. I'll fix it, thanks for reading this.
HAVE A NICE DAY!
Does Step to uninstall it:
Go to Setting - Security- Phone administrators - and deactivate it and uninstall it!