Calculator Vault - Gallery Lock is designed to hide pictures and videos, and lock access to particular apps. These images can be imported from the device gallery, or can be taken in real time through the app. The app appears as a functional calculator, and is opened through entering a particular passcode on the calculator keyboard (or can be accessed through fingerprint entry). The app also gives users a "Face Down" setting, so that as soon as the user sets their mobile face down the app will respond to particular commands (for example, exit the app and open another app or website).