Features of Locx: App LockSecure your Android and protect all your privacy. You can lock individual apps instead of the entire phone. Customized lock screens and wallpapers bring you more choices: pattern and PIN. Photo Vault: Hide and encrypt your photos and videos and keep them locked behind your pattern or PIN pad. Don't worry about your private photos may be viewed by others. Themes: We have proudly announced large quantities of attractive wallpapers designed by the world's top designers. They are so amazing and fantastic. You may apply new themes in "Locx" - "Side nav" - "Themes". Chameleon: Disguise your lock screen to prevent from breaking into your password. Fingerprint scanner and fake force close dialog are now supported, and more covers are coming soon. Delay to lock: Re-lock is not required when returning from a brief exit, avoiding to frequently unlock and smoothing the app switches. Quick lock / unlock:Awesome and convenient. Adding new widget to your screen, you can take the app lock enabled or disabled with just one tap. Advanced protection: Prevent Locx from being uninstalled by activating Android device administrator, provide a strict protection for your cell phone. And all these are amazingly free.