“We pulled RevenueCat numbers and from all of our customers, App Store EU-specific revenue is 12%. So even Nintendo coming out with a Switch store — that's a lot of work to build the marketplace, to maybe move the needle on 12% of your revenue.”

EU is only 12% of App Store revenue — opportunity ceiling on the whole debate

Before reshaping your business around EU-only DMA changes, remember it's roughly 5-15% of total App Store revenue for most apps. RevenueCat's aggregate number is ~12%. That sets the ceiling on how much engineering and risk any EU-only opportunity is worth.