I had to authenticate on my iphone 13 by email and also by txt message which is bit much since my iphone 13 isn't my daily driver and has no service. It’s used as a strictly for porn, as a Roon remote, and to use the AIDJ ios app for (ROO-EXTEND Roon AIDJ Extension to curate great custom playlists and queues them in Roon using my voice).
