Firebase IOS - Create user with phone number

Question

I am using firebase in a current project and I understand that there is a method in Firebase called createUser(email, password). However, I was wondering if there was a way to sign up users and create users using only their phone number with firebase? I know that firebase supports phone number sign in, but does it support phone number sign up?

Answer 1

All of the authentication providers supported by Firebase Authentication can be used for initial sign up, and also signing in after that. This includes phone numbers.

Answer 2

Once you sign in with authentication providers supported by Firebase, authenticated user is automatically signed up. That is, sign in function act as Sign up function when used first.