Ripl now allows you to Sign in with Apple. When creating an account or logging in please select the tab "Continue with Apple."
Upon clicking "Continue with Apple," you will see a pop up appear where you can choose your Apple ID to continue. If your account is not there, please select type in your correct Apple ID information.
How to stop using your Apple ID with an app
To manage the apps you use to Sign in with Apple, please refer to this support article.