Apple is facing a £2 billion ($2.7 billion) lawsuit filed at London’s Competition Appeal Tribunal on Thursday, brought on behalf of app developers who allege the iPhone maker abused its dominant market position by imposing stricter privacy tracking restrictions on third-party apps than on its own competing services.
The case centers on Apple’s App Tracking Transparency feature, launched in 2021, which requires apps to ask users for permission before tracking their activity across other companies’ apps and websites. While Apple presented ATT as a user privacy protection, lawyers bringing the lawsuit argue it was designed to give Apple’s own advertising business a significant competitive advantage.
What the Lawsuit Alleges
The lawsuit is being led by Ann Pope, a former senior official at Britain’s Competition and Markets Authority — the UK’s primary antitrust regulator.
Pope and her legal team argue that Apple’s ATT framework applied different standards to Apple’s own services compared to third-party app developers. Specifically, the lawsuit claims Apple exempted its own apps and advertising systems from the same consent requirements it imposed on competitors — allowing Apple to continue collecting user data for its own advertising platform while cutting off the data supply that rival advertisers and app developers depended on.
“Apple’s policy resulted in very significant harm to businesses that depend on Apple as a gatekeeper,” Pope said in a statement. “This action is important to protect the rights of British businesses that depend on Apple, to ensure that the rules that Apple applies are fair, and to compensate the losses that British companies have suffered.”
Apple’s Defense
Apple rejected the characterization of ATT as anticompetitive. The company said the feature was created to give users meaningful control over their own privacy and maintained that it is bound by the exact same requirements as all third-party developers on its platform.
“App Tracking Transparency was created to give users a simple way to control whether apps have permission to track their activity,” Apple said in a statement.
A Pattern of Global Regulatory Pressure
The UK lawsuit is the latest in a long line of regulatory and legal challenges Apple has faced over ATT across multiple countries:
Germany: Apple agreed last month to change its app data consent rules after Germany’s Federal Cartel Office accused the company of abusing its market power. The German regulator sided with Meta, publishers, advertisers, and app developers who argued ATT devastated their advertising-dependent business models.
France: French antitrust regulators fined Apple over the privacy tool in 2025.
Italy: Italy’s antitrust authority fined Apple for alleged abuse of its dominant position through the App Store and ATT framework in late 2025.
Poland: Polish antitrust authorities opened their own investigation into ATT’s compliance with competition law in 2025.
The breadth of regulatory scrutiny across Europe reflects a growing consensus among competition authorities that ATT — whatever its stated privacy benefits — had the practical effect of harming Apple’s competitors while benefiting Apple’s own advertising business.
The Impact on App Developers and Advertisers
When Apple launched ATT in April 2021, the effect on digital advertising was immediate and severe. Companies that relied on cross-app tracking to target advertising — including Meta, Snap, Twitter, and thousands of smaller app developers — saw their advertising revenue drop sharply as users opted out of tracking.
Meta alone attributed billions of dollars in lost annual advertising revenue to ATT. Smaller developers with fewer resources to adapt their business models were hit even harder.
Meanwhile, Apple’s own advertising business — the App Store search ads product — grew significantly in the same period, as advertisers shifted spending toward channels that still had access to user data.
What This Means for US App Developers and Users
While this particular lawsuit was filed in London, its implications extend to the US market. Apple faces similar antitrust scrutiny in the United States, where the Department of Justice filed a sweeping antitrust lawsuit against Apple in March 2024 covering multiple aspects of the company’s control over the iPhone ecosystem.
For US app developers who experienced significant revenue losses after ATT launched, the UK case and the parallel regulatory investigations across Europe may signal that legal avenues are opening up. US antitrust attorneys have been evaluating similar claims in American courts.
For everyday iPhone users, the case raises fundamental questions about whether Apple’s privacy features are what they appear to be — genuine protections for users, or competitive tools that benefit Apple’s bottom line under the cover of privacy.
InjuryWatch News will continue tracking Apple antitrust litigation in the UK, Europe, and the United States.