A free program for Android, by Donna Danley.

Calc Box – Photo,video locker, is the best app to hide photos, videos, and other files from prying eyes. This app is completely free and works on most Android devices.

The application works by hiding the files inside a secure vault that only you can open. If you want to view the files, you can access the safe using a specific password.

This is the best application to prevent others from seeing your private photos and videos. Use the app to hide photos and videos from the public gallery, so they will not be seen by other people!