True, but nobody is bound by it. There are other ways to sell on PC, there are no other ways to sell on iPhone. And games bought elsewhere will work just fine on a PC that has Steam installed. Anyone can leave at any time, or buy from anywhere. The only way to do that on iPhone is to switch your entire phone with Android. Apple’s position on the iPhone is far more controlling and monopolistic than Steam’s on PC.

The Steam tax might be too steep as well, but these are not identical situations. It’s far easier to avoid Steam if you don’t want it. I prefer to buy from GOG, and only buy from Steam when it’s cheaper or not available on GOG.

But Valve doesn’t have a monopoly on PC games. You can sell your own game, or sell through GOG. On iPhone, Apple has the monopoly and they abuse it.

Next they’ll take 30% on every transaction through my banking app.