As much as DHH can be a bit angry on Twitter, I think he has the resources and fervor to go to bat and give Apple hell for this.
Interestingly, while Apple is constantly touting its own privacy and anti ad features, this huge fee drives App developers to monetize through less scrupulous means to avoid paying the Apple tax. Generally, this mean apps that harvest data or show ads.
I’m not sure what the correct % is in this case, but 30% and 15% is large for a mobile email client.
For those that don’t know what Hey is, it’s a new email service launching with the @hey.com domain. There’s been a frenzy of invite swapping just to try to lock in the good 2, 3, and 4 character email prefixes. Also they are charging $999 a year for a 2 character email which is a good way to capture value.