Apple/Rachel Luna/Stringer "Fortnite" maker Epic Games is suing Apple, and the bench trial started this week in California. Epic says Apple's App Store is a monopoly. Apple says Epic broke its developer contract. Through court filings, major secrets from Apple, Epic, Microsoft, and more have been revealed. Apple and the maker of "Fortnite" are currently at war in a California courtroom — the culmination of a yearlong spat between the two American business giants. Epic Games filed suit against Apple last summer after its hit game, "Fortnite," was pulled from Apple's App Store. Apple says it pulled the game because Epic violated the terms of its developer agreement when Epic implemented a payment system in the game that enabled players to circumvent Apple's App Store. Epic says the App Store is a monopoly, and argues that iPhones and iPads are no different from computers.