If I am not mistaken it is not available on the Google Play Store either because he is unhappy with the 30% fee and 15% fee after 1 year for recurring customers.You have. It is also on Playstation, Xbox, Nintendo Switch and you can play it for free through xCloud on Game Pass (without needing a sub) and GeForce Now.
So you have heaps of choices where to 'buy' it (it is free). Everywhere except the App Store because Apple does not want it. That is not an Epic problem.