HomeAppsToolsKnock lock screen - ApplockApps like Knock lock screen - Applock Here are some great alternatives to Knock lock screen - Applock by knock lock : AppLock - Lock Screen ★4.4 Applock Pro - App Lock & Guard ★4.6 AppLock Master ★4.4 Face Lock Screen Prank ★3.3 Voice Screen Lock & Voice Lock ★4.0 AppLock Live Theme - Corgi ★4.3 AppLock Live Theme - Earth ★3.8 AppLock - Lock apps & Pin lock ★4.6 AppLock Live Themes - Illusion ★4.4 AppLock- Password, Fingerprint ★4.9 AppLock Live Theme - Speedboat ★4.2 AppLock - Skull ★4.4 AppLock Theme - SeaTurtle ★4.5 AppLock - Skull ★4.3 Applock Live Theme - Circuit ★4.6 Applock - Fingerprint Password ★4.4