Secret Calculator is a simple calculator, which includes a hidden gallery, contacts and notes.
These functions are covered by calculator, and not visible at first. You should type a password to open these hidden functionality. You will write password directly in the calculator, so no one else will guess that there are other functions except for calculator.
This application stores all files only in the device. And no way to recover the data if you forget a password.
• Photo and Video Gallery
• Contacts list
• Do not keep application in the recent list after pressing a home button