Calculator Photo and Video Vault will allow user to hide their important Photos and Videos behind a smart fully working Calculator. So it’s a Smart Calculator Locker for hiding your Photos and Videos. @ When you first time start your app it will ask to Set your password. After typing password use “square root” ( √ ) as your “Done/Ok” button and than it will ask to confirm your password. So type your password again and use again “square root” ( √ ) as your “Done/Ok” button. It will set your password. Only when knowing the password you can access your photos or videos. So basically, Calculator vault is all you need to protect your personal and important photos and videos from others. You will never have to worry about some one will see your personal photos as it’s full functional working Calculator, no one will recognise it as private photo and video vault and try to break through it.