Today, Apple announced that it is reducing the commissions it pays on apps and In-App Purchases from 7% to 2.5% effective May 1st. The iTunes Affiliate Program pays a commission from Apple’s portion of the sale of apps and other media when a purchase is made with a link that contains the affiliate credentials of a member of the program. Anyone can join, but the Affiliate Program is used heavily by websites that cover media sold by Apple and app developers. The announcement, which was made in the May Affiliate News email that Apple sends to participants in the program says:

Starting on May 1st 2017, commissions for all app and in-app content will be reduced from 7% to 2.5% globally. All other content types (music, movies, books, and TV) will remain at the current 7% commission rate in all markets. We will also continue to pay affiliate commissions on Apple Music memberships so there are many ways to earn commissions with the program.

With ad revenue in decline, affiliate commissions are one way that many websites that write about apps generate revenue, MacStories included. Many developers also use affiliate links in their apps and on their websites to supplement their app income. This change will put additional financial pressure on both groups, which is why it’s especially unfortunate that the changes are being made on just one week’s notice.