Using an iPhone SE.
Since iNaturalistAU came out, the iPhone app keeps endlessly asking me whether I want to join. Whether I select ‘OK’ or ‘No’, I am taken to a buggy second screen asking me to enter details. There seems to be no way to interact successfully with this screen if one already has an account, other than to dismiss the ‘Sign Up’ modal, which then keep bringing it up again and again in an endless loop.
There is a link for users that already have an account, which is obscured (possibly through faulty CSS) underneath other text and cannot be interacted with.
Images of the two screens:

