Supreme Court rejection could cost Apple billions of dollars

• The US Supreme Court rejected Apple's appeal of a court order challenging app store payment options.
• The rejection means app developers can insert links to other payment options in iPhone apps. 
• The case grew out of a lawsuit filed by Fortnite maker Epic Games.

The Supreme Court on Tuesday allowed a court order to take effect that could loosen Apple's grip on its lucrative iPhone app store, and potentially affect billions of dollars in revenue a year.