Hi there,
We're using passwordless authentication with a magic link via Email. For example, a user might register their email and then receive a single-use passcode for each sign on. One common example of this isSlack's magic links. Put in your email, hit “Send Magic Link,” and you can log into Slack from your email inbox with no password. While it is not as popular as other forms of login yet, it is sustaining rapid growth.
However, Apple keeps on rejecting our Apps and over the phone they explained we MUST use passwords...
Would be good to hear if other developers experience the same issues as we think it's rather strange as authentication a user via a third party platform like Facebook is allowed. Passwordless login is supposed to be more secure than using passwords. There are also apps in the App store using the same method, but they don't seem to have been rejected...
Regards,
Alexander