You can sign up for a 1SE account using a Google account or Apple ID or by entering your email and password. If you choose to register with Google, follow these steps:
Locate the Profile icon in the app and tap on it.
Next, tap "Create Account or Sign In."
Tap "Continue with Google."
Select a Google account (or add one) you'd like to use.
Follow the prompts to finish.
Creating a 1SE account will not delete or replace data in your app.