A free program for Android, by Calculator Lock – Photo Vault Video Vault.

What is Calculator Photo Vault?

Calculator Photo Vault is an application that can secretly hide photos, videos, audio, and files on your Android phone. It can also hide a whole folder. This app can be used in such a way that no one knows about its existence of it except for you. It is a free and easy-to-use application.

How can I use it?

To use this, you will first have to install it on your Android phone.

Once the installation is completed, you will be able to use it.