Download Knock Lock AppLock Screen 8.4.0 APK

Knock Lock AppLock Screen - This is just an incredibly useful lock screen app. Intuitive, and most importantly, it blocks as soon as the phone or tablet goes out. You can choose any lock from flipping wallpaper, chaotic poking around the screen, or just entering a password. The most important thing is that none of your friends will guess how to unlock it.