Private chat Lock - Lock SMS, micro-letters, LINE, KakaoTalk and other chat applications, protect your private information. - SMS locks, micro-channel lock, Whatsapp lock, Facebook locks, LINE lock, KakaoTalk lock. Protect your information is not peek. - Interface design simple atmosphere. - Lower memory footprint. Less than 5M, are more economical than any other similar application memory. - Graphics unlock / password to unlock, convenient unlock. Girlfriend always have a strong urge to turn your cell phone? When gathering with friends to find you by phone, and your phones SMS, micro-channel do not want to peek? Relatives of the child to find the phone you want to play, worry about your phone is his take recklessly SMS, micro-letters? Chat Private lock will solve all your problems described above!=========== Tips ===========Q1: Why cant I lock the app when I set it up?Because the application lock cannot be locked due to system background cleanup, some devices you need to add a permission to allow background startup permissions. Settings-> Manage apps-> Private AppLock-> Permissions-> Start in backgroundQ2: Why cant I lock the app after booting?Please add an app lock in self-startup management.