I have a question about the Firebase pricing model as I'm developing a free mobile app that could generate a large number of account registrations. We are developing our mobile app on the Firebase platform and need to determine if we should use Firebase Authentication or Okta for user authentication. We will have both consumer and business users.
Our GCP based solution is integrated with Zendesk and thus we need a SSO solution to authenticate users so they can access authenticated content and manage support tickets within the app environment. Zendesk has both a JSON Web Token (JWT) and a Secure Assertion Markup Language (SAML) SSO option.
From a tech perspective, Okta provides SAML but
Okta's per user, per month pricing model can get expensive (Bitium provides a SAML/Firebase solution but
Bitium's Pricing is even higher). SAML could be advantageous when working with business customers but with only a handful of users per company, probably not a big deal. Most of our users will be consumers.
Am I correct that with Firebase there are no per user, per month fees with Firebase Authentication except for Phone Auth? For example, there are
auth limits by plan but no per email or per active user fees.