Album Lock - Keep Private Pictures Safe!

the only app of this kind that has no constraints and include all features in the free version without any advertising ( TOO GOOD TO BE TRUE RIGHT? but it is true)Calculator Lock or Calculator Hider is one of the best application to hide your private photos, videos, contacts and notes helping to keep you data safeSometimes you want to hide some pictures and videos from other people who might use your mobile. The application does all this in a disguised form imitating a common calculator application, however once you enter your secret code it will open up a set of hidden features.