You can sign up for a 1SE account using an Apple ID or a Google account or by entering your email and password. If you choose to register with your email, follow these steps:
Locate the Profile icon in the app and tap on it.
Next, tap "Create Account or Sign In."
Tap "Sign Up with Email."
Enter your name, birthday, email address, and password.
Tap "Create Account".
Follow the prompts to finish.
Creating a 1SE account will not delete or replace data in your app.