Lots of comments around the line of "ok maybe 30% is too much, but we can all agree they offer a valuable service, so what percentage should they take ?" Uhhhh, not a percentage ? Do you imagine AWS billing you a % of your revenue instead of a given price for a given service ? Give a price to be listed in store, to be reviewed, to be downloaded by a user, ... And let company pay what they owe you. Let them pay throug…
It's the 'market power / monopoly' issue that is the problem.
Apple needs to allow 3rd part app stores and direct downloads and that's it.
They can keep their 15%/30% if they think the market will allow that.
The 'security' issue is a canard because the Android world is not effectively less secure. Moreover, Apple could still make certain security/notarization requirements, strictly technical.
Too many people are weirdly supportive of their control - it's totally fine and frankly understandable if you want to 'just use the App Store' - but it's not good to limit others.
Vertical consolidation within industries is usually a bad thing, not always, but it's definitely bad when these power/monopolies are created.
On the other side of the equation, Apple has a 'Monopsony' in other areas as well (exclusive buyer by force) which can be looked at.
The M1 chip, design, great apps - compete there, but indirect downloads, 'self repair', probably battery/disk/memory upgrade replacement etc. should be open.