Volume unlock or volume power unlock is the utility app to unlock screen from the volume button.

Unlock screen from volume button shake to screen lock volume power button...

Since many of the phones the power button is broken So this app provides support to use volume button as power button.

Lock screen via
a. app shortcut
b. app notification
c. Shaking phone
d. Floating lock button
c. double pressing the volume key (Experimental)

Advantage:
We support NO ADS and we are simple in all formats and PERMISSIONS too.
No unnecessary permission
App size is too small
Simple UI