Apple is a dominant player in the technology sector, particularly in the smartphone and personal computer markets. The company's market share and influence have raised antitrust concerns, similar to the Microsoft case, where the court found that Microsoft's dominant position in the operating systems market allowed it to exclude other software developers and maintain its monopoly. The Supreme Court has set a high bar for proving antitrust violations, emphasizing the need to demonstrate significant and durable market power and anticompetitive effects. Recent decisions, such as Ohio v. American Express, have further limited the scope of antitrust enforcement, making it more challenging for plaintiffs to prove harm to multiple parties in a transaction.