It reduces wear and tear on your device's Power button ( orscreen lock button available on a few models)
On many device models, the power button in the only way to lockyour screen immediately. Power buttons can fail over time andrender the phone unusable or entail expensive repair.
If you find yourself frequently needing to lock your screen, youmay find LockScreen convenient and useful.
LockScreen itself has no user interfaces and as such has aminimal overhead and footprint.
Its only runs for the very brief interval when you execute theapp, no continuously running components, no additional batteryconsumption.
Therefore the screenshots included with this description arethose of the launcher icon for this app. There is no other Userinterface that this app has.
The first time you launch this app, though you will see a Userinterface from the Android Device Administration Settings whichwill prompt you regarding Activating this app and allowing it tolock your screen. This is a one time step.
No Permissions needed, No continuously running components, nopower drainage
Thereafter, simply touching the launcher icon will lock yourscreen immediately.