I am trying to build an SMS OTP based login system for my application.
From what I have read, I have two options, Firebase Auth and Auth0. Which one of the two is more suitable for Bubble? Are there any other better options?
Use-cases that I want to cover are these:
Users should be able to login via SMS OTP, or Email, or Google/FB
Need to handle scenarios of user first registering/signing-in with one method and then later on signing in with other method (merging two identities etc.)