2024-08-29 00:00:00 Calculator Vault - Calculator Hide Photo Lock and Lock apps. Use the best calculator photo vault to hide photos, hide pictures, and hide videos. Calculator Photo Vault is the Vault app that can secretly Hide Photos, Hide Videos, and other files without anyone knowing. The gallery lock installed on your phone looks like a beautiful calculator and works very well. Your files Will be secretly stored in the vault and can only be viewed after you enter the Numeric PIN on the calculator screen of this app.