The U.S. Supreme Court has agreed to hear Apple’s appeal over a lower-court decision that resurrected a seven-year-old class-antitrust lawsuit, Reuters reports. In 2011, a group of consumers filed a lawsuit alleging that Apple was maintaining a monopoly on the sale of iPhone apps, driving up prices because the App Store is the only place where such apps can be purchased. Apple asked for the suit to be dismissed in 2013, asserting that there was nothing illegal about creating a closed system, and arguing that it is developers, not Apple, that set prices for apps. A U.S. District Judge ruled later that same year that the plaintiffs couldn’t continue the lawsuit simply because they hadn’t actually bought the apps in question, and therefore couldn’t demonstrate that they had “personally suffered an injury” based on the conduct that they were accusing Apple of. While a lawyer for the plaintiffs at the same said the case could easily be refiled to meet the requirements, that didn’t surface until early last year, when the 9th U.S. Circuit Court of Appeals ruled that iPhone users are free to sue Apple for its alleged monopoly on iPhone apps, although Apple maintained its original argument at the time that users had no standing to sue Apple because the App Store is simply a storefront, however the appellate court judge disagreed, saying that since iPhone users must purchase apps directly from Apple, they have a right to bring a legal challenge against Apple.