Feature: - This app protects your privacy, pretending to be a calculator. - This app can be used as a real calculator in the calculator mode. - Entering a PIN in the calculator activates the browser mode. - Browser mode automatically exits when you turn off the screen or return to the home screen. - Your browsing history or bookmark are saved in this app only. - No need to create an account. - No need to enter personal information. Note: - There is a tutorial on how to enter a special password at the first startup. If you have some iOS devices, please finish the tutorial on all devices. - Clipboard and keyboard input history cannot be deleted with this app.