The eVault is a vault application for Android that allows the user to keep their phone protected by blocking the access of pics and videos after securing their photos and videos by moving them to a secret location on their device. Once you have secured your private photos and videos, simply block the application with a PIN or a text password. You can see them only after entering the correct PIN. The eVault application has a simple user interface. All files hidden by the application are encrypted. After starting the application by entering the correct access code, you can explore all the media within the application. You can build your own privacy lock app using this source code.