The Windows Phone which has gone free next as myAppFree app of the day is Lock Screen.
Lock Screen Details:
You have a headache because the power button is broken. But the cost of replacing new buttons is expensive, plus distrust into repairman.
You want to lock your phone screen quickly with just one touch. Lock Screen will help you do that! With just one touch, you can lock your phone screen quickly without using the power button. This helps to increase the life of your power key.
Lock Screen gives you the ability to change color custom tile, tile icon changes quickly so that you can pin shortcuts off the screen. From there, you just touch the screen you were locked fast.