Calculator Vault Master is super safe for your iPhone that helps you keep private photos and videos. About Calculator Vault Master: 1. Password protected: the appearance is just an ordinary calculator 2. Support photo import and management 3. Support video import and management 4. Support contact management This is a 100% private app that focuses on personal privacy and can protect your memorable photos and videos, no one can recognise that you are using this app to protect your private information, just set your password, and it can be used easily! Calculator Vault Master is your super assistant, and it is completely free, download it now!