Creating an account isn't required to get started. It is helpful though.
For example, if you change phones, an account will let you keep your profile information and settings on the new phone. You’ll just need to log in to the app using your account on your new phone. With an account you can also review your stats from the Player Dashboard on the web.
Please note, Facebook and Google logins will be removed in Q1, 2022. If you use one now, please change to email-based login at your earliest convenience. Learn how here.