Xcode offers a predefined target called Safari Extension App for both iOS and macOS:
But it seems to be completely different from each other. On macOS I can create a toolbar button that displays a popup view that contains a NSViewController. On iOS however, the only way to create a popup view is using HTML and JavaScript.
Is there any way to use a UIViewController on iOS instead?
It appears that the Safari App Extensions API is only accessible on macOS. https://developer.apple.com/documentation/safariservices/safari_app_extensions
Am I missing something?