You can reissue a password.
1. On the Log in page, select “Forgot password?”
2. Enter the e-mail address that you registered (authenticated) upon your first log-in.
3.You will receive an email from Goocus Development Team (email@example.com) to the e-mail address you entered. The e-mail includes your newly issued password.
4. On the log-in page, enter your log-in ID and the newly issued password that was sent to you via the e-mail and then you’ll be able to log in.
5. If you want to change the newly issued password, set a new password on the app from the Settings page, which has the password-changing section.