The iOS one is unmaintained and has been for a while (it still doesn't officially support Godot 4.x). Supposedly it should be maintained again by EOY but we've yet to see any progress on it.
There were a bunch of people asking about it on Discord for Godot 4, and some confused reddit threads offering to pay people for a tutorial:
https://www.reddit.com/r/godot/comments/11vxeo7/can_i_please...
https://old.reddit.com/r/godot/comments/13ka6qc/will_pay_to_...