This is a little ambiguous. How is “revenue” defined? Is it only purchases made directly by users or does it also include ad revenue? If former, then the comparison is useless because vast majority of users on android are using ad-funded apps where revenue flows from advertisers to the ad platform (Google etc). Devs could be using third party ad platforms too and it would be nigh impossible to estimate this revenue.

Yes Apple App Store earns much more than Google Play Store does, that's not a news and every mobile developer know. But as long as Android exists, I would argue that Apple is not a monopoly[1] (perhaps some would argue duopoly?[2])

Here are a few reasons that will make it hard to convince Anti-trust judges that Apple is a monopoly:

- Apple doesn't control how much mobile apps would charge consumers. It simply provides a proprietary platform for you to reach out to 2 billion potential customers, for that they take 30% commission for distribution and access to their customer pool.

- Apple's platform is proprietary, they invest / build / maintain / distribute for you. You are not obligated to publish your mobile apps on it. You have the freedom to do it on your own (yes, on iDevices that means sideloading, jailbreaking, a web app etc.) or publish on competitor's platform (Android / Samsung / Huawei / Xiaomi / Kindle etc.) It's just so happened that Apple's devices are popular (2 billions of them) and you have much better upshot to make money if you charge customer for your app on App Store, but again, nobody force you to publish on Apple.

- There is no reason to believe that because Apple's devices are so popular (or in your words, dominant in terms of mobile app revenue) consumers are forced to pay higher price for mobile apps. Again, choices are there. There are tons of Android users out there, in fact, more than 3x of Android devices are there on the market.[3]

Lastly, have you wonder why Apple earns double what Google makes in being mobile app platform? If you want a premium product, a more unified user experience, focus more on security (make money on hardware instead of harvesting personal data and sell it to advertisers), perhaps you could earn much more margins but selling much less units and still getting rich? That's exactly what Apple did. Granted, they got greedy by jacking up the price even more on iPhone X/XR, market responded negatively. So they corrected themselves a little bit (got rid off the lady who sell luxury goods rather than consumer electronics.) And they diversify.

[1]: https://www.investopedia.com/terms/m/monopoly.asp

[2]: https://www.investopedia.com/terms/d/duopoly.asp

[3]: https://www.macworld.co.uk/feature/iphone/iphone-vs-android-...

The precedent of the Microsoft IE anti-trust case basically refutes your core arguments. It's not about Apple being a literal monopoly, it's about Apple holding a dominate position from which they make abusive anti competitive and anti consumer decisions which are propagated to the rest of the market. App developers are going to look at iOS market's dominate revenue stream and decided that if they are to maximize their potential profitability as per their likely fiduciary duty they will need to follow Apple's whims.

> it's about Apple holding a dominate position

Again, my core arguments is they are not in that position. Android marketshare is 3.3x of Apple's, if you want to reach out to more customer, you'd be releasing on android not ios, right?