A descrição de Smart App Lock

Smart App Lock is the best app lock tool for Android, which will help you lock apps, hide photos and videos. Protect your secret and guard privacy with PIN and pattern lock. Smart App Lock can lock any app you choose.
Get the perfect security guard for your phone and snoopers won't disturb your privacy.
The powerful & advanced Smart App Lock! Download now!
--Main Features—
*App Lock
Smart App Lock can lock apps, such as Contacts, SMS, Settings, Email and any app you choose to prevent unauthorized access.
*Lock Social apps
Smart App Lock can lock Facebook, WhatsApp, Instagram, and so on. No one can peep at your private chat any more.
*Hide Photos
Lock private photos after locking gallery. No more worry about your private photos will be viewed by intruders.
*Hide Sensitive Videos
Keep all your private videos invisible from any intruders after locking gallery!
*Lock Systems
Lock system settings, to keep phone away from being messed up by kids.
*Lock Google Play
Lock markets to prevent your kids from purchasing in store without you know.
*Lock Games
Lock games to prevent your kids from getting addicted to it.
*Hide Draw Pattern
Hide the pattern draw trajectory to prevent others from peeping your pattern lock.
*Small package
Small size, do not take the battery and the your device's memory