The legal battle - started by Epic Games - could determine the future of the highly lucrative App Store.

Apple should return hundreds of millions of dollars to developers who claim the iPhone maker defied a U.S. judge’s order governing its lucrative App Store, causing them to pay inflated commissions for more than a year,

Epic v. Apple judge Yvonne Gonzalez Rogers just ruled that, effective immediately, Apple is no longer allowed to collect fees on purchases made outside apps and blocks the company from restricting how developers can point users to where they can make purchases outside of apps. Apple says it will appeal the order.