Secret Calculator is a security photo and video vault for you to hide photos and videos. The lock screen of this vault is a calculator which is hard for others to find this is a photo and video vault. Core Features: ✔️ Hide photos and videos to prevent others from discovering and accessing. ✔️ Create albums with names you want to organize photos and videos easily. ✔️ Secure notes. ✔️ Private browser for you to browse website without trail. Notes: ✔️ Press '=' button to create a new password or unlock the app with existing password.