For transferring files (photos or others) from iOS, I have been using Landrop for a while and never had any issues so far, it’s also way faster than using a cable.
replies(4):
https://github.com/LANDrop/LANDrop
I used it along with another called Localsend, but the later one gave me a bit of headache and crashed while transferring some large files last time I used it, but still great as an alternative too, and it’s open source as well.
Edit: Actually, you are correct, it seems they did close it! Try localsend instead.