Apple has revenues of about $275bln, and a net margin of about 21% company-wide, meaning $58bln. The app store sold about $50bln worth of stuff in 2019, Apple'

Apple has revenues of about $275bln, and a net margin of about 21% company-wide, meaning $58bln. The app store sold about $50bln worth of stuff in 2019, Apple's 30% cut would therefore mean $15bln in revenue. If they operated the app store at a least a 70% margin (and really, if they didn't, then I'd be rather surprised), that would mean a good $10bln in net profit from the app store, or 17% of their total net profit. And that's still not accounting for the network effect the app store creates, or the business intelligence. It might not be the biggest elephant ever, but it's not what I'd call a tiny baby elephant either.