"Part of that energy has been channeled into figuring out how to sell developers on subscription services, and not only that, but how to keep them keeping on with those subscriptions. Previously, only apps classified as news, cloud services, dating apps, or audio / video streaming apps could sell subscription content. Now it’s open to all product categories.

For the first year of a subscription Apple will maintain its 70 / 30 revenue share; after one year, the new 85 percent / 15 percent revenue share will kick in (applied per subscriber). The new app subscription model will roll out to developers this fall, though if app makers have subscribers they’ve already retained for a year, the new revenue split starts June 13th."

That's a big change.