Apple Inc. violated a court order requiring it to open up the App Store to third-party payment options and must stop charging commissions on purchases outside its software marketplace, a federal judge said.

Apple plans to change its U.S. App Store rules in accordance with a ruling from the U.S Northern District of California, Apple said in a statement

The changes the company must now make could put a sizable dent in the double-digit billions of dollars in revenue the App Store generates each year