Apple Must Loosen App Store Grip, Judge Says; What's the Impact? 

SAN FRANCISCO - Apple will be forced to loosen the grip it holds on its App Store payment system, a U.S. federal judge ruled Friday in a closely watched battle with Fortnite maker Epic Games.

Though app makers will be able to take steps to skirt the up to 30% commission Apple takes on sales, the tech giant avoided being branded an illegal monopoly in the case. Here are some key questions on the App Store and the impact of the ruling: How does the App Store work?