Not a huge surprise, there's an iCloud antitrust alleging a 78% gross profit margin:

https://storage.courtlistener.com/recap/gov.uscourts.cand.42...

The Epic legal case ruling cites a 75% profit margin on App Store fees:

https://storage.courtlistener.com/recap/gov.uscourts.cand.36...

And of course, their 36% share of Google Ad revenue revealed in Google's antitrust has to be approximately 100% profit:

https://www.cnbc.com/2023/11/14/google-pays-apple-36percent-...