Protect and guard your apps with AppLock
AppLock Lets you protect your application with the PIN. Now you can easily protect your favorite apps like Whatsapp, Facebook, Twitter, Skype, SMS, Email, Gallery, Camera and contacts from unauthorized resource.
With this app you don't have to worry about your kids or others invading your privacy. When someone tries to unlock your application by entering a random PIN. it notifies you by alarm sound.