> Core Technology Fee — iOS apps distributed from the App Store and/or an alternative app marketplace will pay €0.50 for each first annual install per year over a 1 million threshold.

If I'm reading this right (and I did double check this with ChatGPT [0]) if you have an app with two million unique installs annually, you owe Apple 500 000 euros. That seems to include free apps as well.

[0]: https://chat.openai.com/share/905c5c45-657b-477c-a746-0468dd...