Apple and ‘Fortnite’ maker Epic Games square off in court

A trial started Monday between the maker of the popular videogame “Fortnite” and Apple Inc. that could help determine of how in the future apps generate revenue through mobile devices.

U.S. District Judge Yvonne Gonzalez Rogers is presiding over the planned three-week bench trial in Oakland, Calif.

Epic Games Inc. sued both Apple and Alphabet Inc.’s Google in August after the companies removed “Fortnite” from their mobile app stores. They say their moves were justified because Epic broke their rules by inserting its own system for processing payments made inside the game, a move that would potentially circumvent the 30% slice of revenue that Apple and Google collect from in-app purchases.