Is there a way to know which app opened my iOS app?

Question

Let's say I have a news iOS app with universal link support, and I need to know, for my stats, from where that interaction originates. If I were on the web I could know if the user came from e.g. Google, Facebook or any other website.

Is there a way to know which app brought the traffic to mine, each time it is not opened directly by the user? E.g. if I clicked on a link in Facebook, and user has my app installed on his iPhone, the my app will get called instead of Safari : is there for me a way to know that Facebook is the source of that traffic?

I know of referrerURL available since iOS 11, but it is not quite the same — actually, we would like to know what is the originating app precisely for those cases where referrerURL is nil.

Thanks

Answer 1

I didn't test it actually but you should be able to listen to:

class let didFinishLaunchingNotification: NSNotification.Name

notification and inspect the userInfo dictionary to find sourceApplication.

Reference