[fidotron]

You cannot tell them _within the app_.

You absolutely can tell the customer via your website or any other means you use to communicate with them.

Do you expect Amazon marketplace sellers to be able to link to their items being on ebay or shopify from the actual Amazon website?

[alxlaz]

> Do you expect Amazon marketplace sellers to be able to link to their items being on ebay or shopify from the actual Amazon website?

From the Amazon website? No. From the products they're selling? Yes, absolutely, and lots of them do, I get one of those business cards with "Find us on Amazon/Ebay/Shopify/whatever" in the box with almost every purchase.

Same with apps. I obviously don't expect them to link to items from other stores from their App Store description pages. But from their application? Yes, I totally expect that.

That's how marketplaces everywhere work, including IRL. Go to any farmer's market and most sellers will give you a business card with their website or phone number so you can also order from them directly, or from their Amazon/Shopify/whatever page.

Edit: not to mention that this is 2025, the distinction between "within the app" and "via your website" is pretty meaningless in a bunch of cases.

[fidotron]

> From the Amazon website? No.

Why not?

A major detail you are ignoring here is Apple are the merchant of sale for everything via the App Store (Google at least were not for the Play Store at launch, I do not know if this has changed) so your comparisons do not make sense. The native app universe on iOS is closest to being an Apple run Costco.

I would be very surprised if a fulfilled by Amazon order for a third party seller contained any extra promo materials in the box for similar reasons.

> not to mention that this is 2025, the distinction between "within the app" and "via your website" is pretty meaningless in a bunch of cases.

To you. Not to your end users, and most definitely not to the platform owners.

[alxlaz]

It's not my comparison. It's yours, and just as meaningless as your previous one about McDonald's.

This one's no better, either, as Costco's terms for its wholesale suppliers aren't anywhere close to Apple's, even though the agreement is structured more or less similarly -- but sure, let's entertain it: Costco's terms for its suppliers aren't public, but at least the ones that are on public record (via the SEC: https://www.sec.gov/Archives/edgar/data/1940372/000149315222... ) make no restrictions on the choice of payment processors for digital products, which is what Apple got fined for.

There is a restriction on promotional material enclosed with the product (as in it needs prior written approval from Costco, not as in it's completely banned) and an explicit mention that it applies to digital products as well. But there is no requirement that digital products sold by Costco as merchant of sale for the supplier enable purchases only via Costco.

[fidotron]

The root of your confusion is you think when you've installed and run the app you are no longer in "Costco", but you never left.

You can buy any number of in game items on iOS and then go and use those same items in the Play Store version of the games, and vice versa.

[alxlaz]

The root of yours is that you keep trying to make this about McDonalds, Amazon, Ebay, Costco or some other contraption instead of the App Store, which is what this is actually is about. Not that the argument matters, because the exact moment when you leave Costco has no bearing on the fact that Costco doesn't restrict what payment processor are used in the digital goods that it sells.

But even if it did, Apple's ToS clearly distinguish between the App Store and the licensed application, and between interactions in the App Store and interactions from within the application. You may not want to make the same distinction in order to be right about some imaginary system that you're thinking about, but this is about the actual App Store, not whatever iMcCostco-Amazon marketplace you've dreamed up.

[fidotron]

You're the Ivan the Terrible of bad metaphors and similies. They clearly anger you to an almost amusing degree.

As I pointed out:

> You can buy any number of in game items on iOS and then go and use those same items in the Play Store version of the games, and vice versa.

To be precise you can:

1. Install a game on an iPhone

2. Sign into the game with account for that developer, or even using Facebook

3. Buy in game currency in the game, using the Apple payment processing

4. Install the game on an Android phone

5. Sign into the game with that same account

6. Use the in game currency you bought on the iPhone when playing on the Android phone

7. Buy more in game currency in the Play Store using the Google payment processing

8. Go back to the iPhone and see you have the in game currency there

What is your mental model of how all that works and why?