Calculator Vault is an app that lets you safely hide photos, videos, and other files from your device's Gallery. It can also be used to hide pictures, videos, audio, and other files that you don't want others to see on your phone.

The app is very easy to use. You can just enter the secret code into the app to open the Vault. Once you open the Vault, you can add pictures, videos, and other files that you want to hide. You can also hide files that are less than a certain size.

The Vault can be opened by a secret code that is set by you. The code is not stored on the device, so it can't be seen by anyone else.

You can also import pictures, videos, audio, and other files from your device's Gallery.