It is directly tied to the functionality of the app.
It's not. Certainly not "directly". That particular eBook I purchased does not depend on the reader app. Neither does the reader app depend on that particular (type or instance) of book.
My book can be read with any other compatible app, even on non-Apple devices. Vice versa, my eBook app can read any book purchased elsewhere.
If you’re buying an ebook you’re going to read within that app, then it makes sense to charge a commission for that
From Apple's perspective, it "makes sense" to charge commission on every instance they feel they can get away with (without losing hardware sales).
Nobody installs an eReader app without books to read in it
...and?
Nobody buys or dons a weightlifting belt without intending to lift weights. That doesn't mean the belt manufacturer deserves a share of my gym's yearly membership "subscription" fee. Or vice versa.
While Apple doesn’t technically have to do so, they practically have to do so
No, they don't.
And certainly not any less than Spotify "practically
has to
" agree to Apple's terms to be on the platform.
Apple are making enough money from selling iPhones to bear these costs.
They'd still be making enough money from providing their in-app payment service non-exclusely, i.e. ni competition with other means of in-app purchases.
And again, you have still failed to address the fact that developers agreed to these terms
See above.
And collecting commissions from apps based on in-app sales/revenue is far more fair and balanced than charging all apps the same fees with no regard to size or profitability. Of course a multi-million dollar app benefiting from Apple’s services should pay more than an indy developers app that brings in a much smaller revenue…
We can agree!
👉 Yes, charge Spotify, Netflix, Fortnite and all the others
the same commissions as Uber.
Same pricing.
Same purchasing options.
Same conditions and steering or not.
They can base it on revenue, yes.
Problem solved.
Discussion concluded.
We found a reasonable (and nondiscriminatory) consensus.
This is trying to tell a company that they must essentially allow vendors to violate the terms of their contract, and continue to use their services
Particular anticompetitive prone-to-abuse terms of their service have been made (or considered) illegal.
Happens all the time.
Companies need to set their terms and conditions according to laws - which may change.
Especially when governments (or regulators) have determined a malfunctioning of free markets.
So if apps like Spotify don’t like the agreement, they could always withdraw their App Store app, and require users to sideload their app. Or use a web version. Because both music streaming services and ereading platforms absolutely do work as web apps.
With compromised user experience.
Does it work in background tabs?
Can you play the music to your AirPlay speakers?
Does it cache a meaningful amounts of music for offline use?
Does the browser interface get in the way of music controls?