Lock Screen: Protect Your Privacy and Extend Your Power Button's Life Introducing Lock Screen, the ultimate screen lock apps for effortlessly locking your phone and safeguarding your privacy. With our one touch lock screen feature, you can instantly turn off screen and lock it, reducing the wear and tear on your power button and extending its lifespan. At the same time, this Phone Lock apps also provides the function of adjusting the phone volume, reducing the wear and tear of the phone volume