What did a UK court rule in the suit brought against Apple iCloud for platform antitrust lock-in theories?
The UK Competition Appeal Tribunal issued a Collective Proceedings Order last month allowing the consumers’ association known as Which? and certain consumers to pursue Apple over alleged anticompetitive conduct in the implementation of its iCloud services agreements.
Apple denies liability and says UK customers are not required to use iCloud. They have alternatives, the company maintains.
The claimants seek damages and injunctive relief for alleged violations of Section 18 of the UK Competition Act 1998 and Article 102 of the Treaty on the Functioning of the European Union.
The proceeding gives plaintiffs a forum to test whether iOS defaults, prompts, technical restrictions, and integration choices made iCloud the path of least resistance for users while making rival cloud-storage services less effective.
The tribunal has scheduled a nine-week trial starting in October 2028.
What other competition law action has taken place in Britain involving Apple recently?
The iCloud case follows a major UK App Store ruling handed down in October 2025. The Competition Appeal Tribunal ruled in Dr. Rachael Kent v. Apple Inc. that Apple was dominant in markets for iOS app distribution services and iOS in-app payment services. The court held that Apple infringed Chapter II of the Competition Act 1998 and Article 102 by foreclosing competition and charging excessive and unfair commissions.
The details in the Kent and Which? matters differ, but the structure of the claims is similar: Apple controls a proprietary environment that users and developers cannot easily leave. Plaintiffs are asking whether that control can be used to favor Apple’s own services, impose excessive charges, or make rivals less effective even when users remain formally free to choose alternatives.
British government scrutiny is moving forward outside the iCloud damages case, as well. On June 30, 2026, the UK Competition and Markets Authority (CMA) opened an examination into proposed conduct requirements that would allow UK app developers to steer customers to off-platform payment options and require any steering fees charged by Apple and Google to be fair and reasonable.
The CMA also opened a related call for evidence on access to near field communication functionality on iOS, technology that enables consumers to pay for products by tapping their phones or credit cards on checkout terminals. The agency is concerned that Apple’s fees and terms may limit contactless-payment innovation by fintechs and other developers.
How have platform antitrust claims worked out in the U.S.?
U.S. platform litigation has produced mixed results. In Epic Games v. Apple, Epic challenged Apple’s App Store distribution rules, in-app payment restrictions, and anti-steering limits. The Ninth Circuit largely affirmed Apple’s win on Epic’s federal Sherman Act claims while allowing Epic’s California Unfair Competition Law claim to stand.
Mogin Law’s prior coverage, “Supreme Court Opens Door for App Developers to Circumvent Apple Payment System,” noted that the Supreme Court declined to review both Apple’s and Epic’s petitions, leaving that mixed result in place. Tim LaComb of Mogin Law criticized the Ninth Circuit’s reasoning, writing that it reflected a “flawed analysis of antitrust law.”
Even Apple’s partial win in that case had practical limits. The surviving California claim produced an injunction requiring Apple to allow developers to steer users to alternative payment options (something the CMA is investigating). However, the judge found Apple in contempt for subverting the injunction’s purpose.
On June 30, 2026, the Supreme Court agreed to hear Apple’s appeal, but limited arguments to whether a court may base civil contempt on the violation of an injunction’s “spirit” when the order is silent on the precise conduct at issue, or whether contempt must rest on violation of an order that clearly and unambiguously proscribes that conduct. Mogin Law covered the contempt ruling in “Judge Finds Apple in Contempt for Subverting the Purpose of App Store Injunction.”
What other platform antitrust cases have been addressed by courts recently?
Dan Mogin made a related point in writing about the Supreme Court’s decision not to hear the Zillow platform-power case. In “SCOTUS Turns Away Zillow Antitrust Case and Questions About Platform Power,” he wrote that the Court “missed an opportunity” to address significant issues involving competitive abuses by platform operators that disadvantage consumers.
Zillow, Amazon Marketplace, iCloud, App Store, and cloud infrastructure matters certainly involve different markets and legal theories. But they pose the same competition question: when does control over a digital environment—through design, ranking, defaults, access rules, fees, switching costs, or interoperability barriers—make rivals less effective and reduce consumer choice despite the existence of nominal alternatives?
The FTC’s pending monopolization case against Amazon raises similar concerns about how a dominant marketplace can use platform rules, seller dependence, advertising, fulfillment systems, fees, and anti-discounting policies to shape competition on and off the platform.
Cloud infrastructure is part of the same story, too, especially because Amazon is not only a dominant online marketplace, but also operator of Amazon Web Services (AWS). The CMA’s cloud services investigation found that AWS and Microsoft had significant market power in cloud infrastructure. In March 2026, the agency announced follow-up actions, including a planned strategic market status investigation into Microsoft’s business software ecosystem and continued review of steps by Microsoft and Amazon to address cloud egress fees and interoperability.
Platform power will be a central antitrust challenge for the next decade.
Platform-power questions now reach from consumer devices and app stores to the infrastructure layer businesses use to build, deploy, and scale digital services. And the issue is growing larger as companies race for dominance in artificial intelligence.
Platform power increasingly reaches cloud infrastructure, AI compute, data centers, model-training resources, operating systems, app stores, payment systems, online marketplaces, fulfillment systems, and the technical layers that determine how businesses reach customers and compete at scale.
Courts, enforcers, regulators, and legislators are being asked—and will continue to be asked—whether control over digital environments can make rivals less effective even when users remain technically free to choose alternatives.
Customers and agencies can grumble, sue, and call for change. But the central concern persists: businesses and individuals too often do not have reasonable or comparable places to go, and rivals may have less incentive to try to out-innovate dominant players. “Why bother?” is not the kind of thinking the Sherman Act and other antitrust laws were enacted to encourage. Quite the opposite.
These arguments remain difficult to prove. The problem is reminiscent of the line from The Eagles’ 1977 hit song Hotel California: “You can check out anytime you like but you can never leave.”
In platform cases, plaintiffs and enforcers may not yet have found the exits. But the challenges presented by ecosystem lock-in are real, the alleged harms are not going away, and neither are plaintiff attorneys and government enforcers.
Edited by Tom Hagy, Editor-in-Chief, Mogin Law Blog. Send comments or questions to Info@MoginLawLLP.com.
Takeaways
Apple faces growing UK competition pressure over its control of the iOS ecosystem. Recent iCloud and App Store proceedings test whether defaults, technical design, access rules, and platform integration can support competition law claims.
The iCloud case is about lock-in, not just price. Which? alleges that Apple used system design, prompts, and restrictions to make iCloud the path of least resistance and rival cloud storage services less effective.
Apple denies wrongdoing. But the case matters because it lets a large-scale claim test when ecosystem design may become exclusionary conduct. Trial is planned for October 2028.
Not every integrated product or closed ecosystem is unlawful. The competition question is when product design stops improving user experience and starts making rivals less effective because the platform owner controls the environment where competition occurs.
If you have questions contact us at Info@MoginLawLLP.com.
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FAQ for Business Counsel
Product integration, defaults, security rules, and technical design are not unlawful simply because they benefit the platform owner. The antitrust question is whether those choices make rivals less effective in a market the platform controls, especially where customers or developers have limited practical ability to avoid the platform.
Counsel should preserve communications, platform notices, fee schedules, technical documentation, rejected feature requests, customer complaints, conversion data, lost-sales information, and records showing how platform rules affected pricing, access, visibility, interoperability, or the ability to steer customers to alternatives.
How can counsel distinguish ordinary customer preference from unlawful lock-in?
Customer preference becomes more legally significant when switching is difficult because of technical restrictions, data-portability limits, contractual terms, interoperability barriers, default settings, or penalty costs. The stronger the evidence that customers are staying because leaving is impractical rather than because the product is better, the more important the lock-in theory becomes.
Damages may be important, but many platform disputes turn on access, steering, interoperability, data portability, fee structures, ranking, and non-discrimination rules. Counsel should identify early what business change would actually restore competitive opportunity, because the requested remedy often shapes both the legal theory and the evidence needed to support it.