I just setup my first test vault and purchased the iOS app. I plan to store the files in my ownCloud folder.
When I try to login on the iOS app using WebDAV, I get a red banner with “http method “OPTIONS” not allowed” in the iOS app. The server is ownCloud 10.3.1 (latest stable release).
Edit: Never mind, I just found this post and realized I have to enter the complete URL not just the domain.
Now I had “wrong username and/or password”. Disabling two-factor auth on the server allowed me to login. Any idea how I can keep two-factor auth enabled but still be able to access vaults with Cryptomator iOS?