Hide is an app disguised as a calculator and functions as a secret folder where you can keep your files, such as photos, videos, notes, and more. This app requires a digital PIN to access your stored files. In addition, it allows you to keep your private space secret by disabling the ability to uninstall it. Hence, kids or strangers can’t get in and see what’s inside your private space. 

You can also set up an email alert to be sent to you if someone tries to break into your privacy by entering the wrong password. Moreover, the app uses the device administrator's permission to protect against unwanted uninstallation by someone else.