I have a confusion regarding the "Identity Platform" and "Firebase Auth". In my app I am only using email+password method to signup and signin, with Firebase Auth.
My confusion is regarding the pricing. As far as I know, "Firebase Auth" is free when we are using it with Email+Password. And I am not using Identity platform specific method as far as I know. I just register, login, get UID and do that kind of stuff.
I know Identity platform is not free. Understanding its connection with "Auth" is grey for me because seems they both have a connection.
So, when my active monthly users increase, Let's say it has become 100,000, and now what happens with the pricing for "Auth" ? is it free or will i get billed?
Everything is pretty well explained in the documentation.
Identity Platform is an upgrade from the base Firebase Auth product, and (long) list of features you get are listed there in the docs.
Unless you have gone through the upgrade process using the Firebase console, none of the features of Identity Platform available in your Firebase project, and neither are the costs that you read about. From the docs:
To upgrade your project to Firebase Authentication with Identity Platform, open the Authentication Settings page of the Firebase console.