This app uses the Device Administrator permission.

The purpose of this application is to save HW power button.

After install there is new App Icon - EasyOff. When you tap it for the first time app requests Device Admin right. If you grant it the second and other time you tap it device goes to sleep mode as if you pushed the power button.
Thats all. NO ROOT NEEDED.

how to uninstall:
1. Settings - Security - Device Administrators - Deactivate EasyOff
2. Settings - Apps - Uninstall EasyOff