I can't imagine Apple is getting a cut of any FB ad revenue (or not anything meaningful). To take the thought a bit further though, FB also has an ads manager

I can't imagine Apple is getting a cut of any FB ad revenue (or not anything meaningful). To take the thought a bit further though, FB also has an ads manager app [1] which ad buyers can purchase ads through (pretty much no one uses this app to be fair). No payment ever goes through Apple so I can't imagine they get a cut from sales there either. [1] https://www.facebook.com/business/news/ads-manager-app https://www.facebook.com/business/news/ads-manager-app