As we learned on a previous article, you can request users to register in order to access specific sections of your app.
You can also decide what methods of authentication your users will have available to register and sign in on your app.
Currently we provide 5 methods of authentication:
Registering using an Email and Password
Sign in using a Facebook Account
Sign in using a Google Gmail Account
Sign in using a LinkedIn account
Sign in using with Apple ID
Note that in order to sign in using Apple ID, your app must be republished since Apple requires to submit a certificate before activating this feature.
To manage the available registration/sign-in methods just go to Settings -> Security -> Sign Up Options
Then enable the authentication methods you wish to provide to your users.
To learn more about how to enable authentication, please check out our article about How to Allow Registration on my App?