For free downloads, the notice would of course not need to include the part about 30% of the app purchase price. It would still need to include the parts about

For free downloads, the notice would of course not need to include the part about 30% of the app purchase price. It would still need to include the parts about 30% of the price of IAP and disclose the ban on mentioning any alternatives to IAP that might not include the 30%. It's not typically a norm in other industries that you have no way of buying from the vendor without paying a middleman 30%, and that when such ways do exist, the vendor is restricted from telling you about them. So, for your BestBuy example, if you want to buy from a company who sells there and not pay a cut to Best Buy and their distributors, you can always send a check (for cheapest processing costs) or use a credit card (for still far lower costs than Best Buy's cut) directly to/with the vendor. The vendor gets more of your payment, and you get exactly the same product usable in exactly the same ways as if you had bought at Best Buy. Not only that, the vendor is allowed to charge less than Best Buy charges if you buy direct. Grocery stores are broadly similar, though admittedly fewer grocery vendors are willing to deal directly with individual households (but that's up to them). Apple creates a very different context than the above.