I remember long time ago I could click on a button in Xcode to launch a Web page to manage iCloud data. But now I cannot find the button.
Hello :)
- Here is the link for the CloudKit Console. There you can manage all your iCloud stuff like containers.
- There is still no way to delete CloudKit containers. So the only opportunity is to hide them as you already did.
If you have further questions, don't hesitate to ask :)