UULock

Now you can enable Facebook Chat Heads without worrying about others getting your privacy even they have your mobile phone.

The mainstream chat apps, including Facebook, Facebook Messenger, Whatsapp, kik, Skype, are supported.

Highlights

No ads and all FREE

Low RAM and battery consumption

Anti-kill by task killers(No plugin needed)

Multi protection with anti-uninstall and anti-clear data

Main features

Number/Pattern Lock

Personalized lock themes

Re-lock delay( support time set): get rid of repeated lock

Fake cover with fingerprint and force stop page

Fake as a calculator on home screen

Capture photos of snoops