Apple Faces £2 Billion UK Lawsuit Over App Tracking Transparency Rules

Apple is facing a massive £2 billion ($2.7 billion) collective action in London, with app developers accusing the tech giant of applying stricter tracking rules to third parties while exempting its own advertising and data operations. The lawsuit, filed Thursday at the Competition Appeal Tribunal, alleges that Apple’s App Tracking Transparency framework unfairly burdens developers who depend on ad revenue to keep their apps free.

The Double-Consent Core of the Complaint

The claim, brought by ATT Collective Action Limited, centers on a single argument: Apple forced third-party developers to implement a two-step consent process before they could track users across other apps and websites. Meanwhile, Apple’s own advertising and data collection services were not subject to the same requirement. This meant third-party apps had to ask users for permission twice, while Apple’s in-house offerings operated without such restrictions.

Since App Tracking Transparency launched in April 2021, users see a prompt when they open an app, asking whether they allow advertisers to track their activity. If a user declines, the developer loses access to that person’s data for ad targeting. Over the past five years, this process has allegedly funneled advertising revenue toward Apple, as developers faced higher costs to reach new users and saw weaker ad performance.

The lawsuit argues that this double standard has caused significant financial harm to developers who rely on ads to fund free apps. The collective action covers any developer that used advertising to support a free app during the period in question.

Who Is Behind the Claim?

Ann Pope, a former senior director for antitrust at the UK’s Competition and Markets Authority, is leading the claim. Notably, the same regulator’s tribunal will decide the case, adding an interesting twist. Pope framed the issue not as a privacy matter but as a fairness question.

"Privacy is an important protection for consumers, but it should be applied fairly and in a way that ensures businesses of all sizes can compete on a level playing field," she said. She added that Apple’s rules have "resulted in very significant harm to businesses that depend on Apple as a gatekeeper."

Apple has not commented on the case. The company has consistently argued that its own apps are exempt from the tracking prompt because they do not collect the data that the prompt addresses, creating what it sees as a level playing field.

Regulatory Pressure Mounts Across Europe

The UK filing comes after several years of regulatory challenges for Apple in Europe. In December 2025, Italy fined Apple €98.6 million over App Tracking Transparency and demanded changes to the rules. France followed with a €150 million fine in April 2025, although it did not require modifications. Germany’s competition authority also found that the ATT prompts were designed to favor Apple over rivals by generating more consent outcomes for Apple, and it demanded design changes. Apple subsequently agreed to eight policy adjustments in the European Union. Poland and Romania have also launched reviews of Apple’s practices.

This latest legal action adds to the Competition Appeal Tribunal’s growing docket of Big Tech cases. The tribunal is also considering a separate $4.1 billion claim against Apple over iCloud pricing, with a hearing scheduled for late 2028. That timeline hints the ATT case could also take several years to resolve. No hearing date has been set for the current lawsuit, and the exact calculation behind the £2 billion figure has not been disclosed. Even if the claim succeeds, the tribunal could award a lower amount.

Coinasity's Take

This case highlights a broader trend of regulators and courts scrutinizing how dominant tech platforms apply rules to third parties versus their own services. For the crypto and blockchain community, the underlying issue is decentralized competition versus centralized gatekeeping. If Apple is found to have abused its position, it could set a precedent that empowers smaller developers and reinforces the need for open, fair access in digital markets. However, the lengthy legal process and the complexity of proving harm mean the outcome remains uncertain. We will watch closely for updates as the case progresses.