Apple hit with £2 billion UK lawsuit over App Tracking Transparency double standard
Apple is facing a £2 billion ($2.7 billion) lawsuit in the UK over how it designed App Tracking Transparency, the privacy prompt system it rolled out in April 2021. Filed at London's Competition Appeal Tribunal on September 3, 2026, the case is brought by ATT Collective Action Limited on behalf of app developers. The outcome could set a precedent for collective developer claims against platform gatekeepers across Europe.
The allegation
The claimants argue Apple applied a double standard: third-party apps were required to show a prominent consent pop-up asking users for permission to track them across other apps and websites, while Apple's own advertising services faced a lighter touch. The effect, they say, was that Apple's own ad ecosystem gained an unfair advantage — users were nudged toward consenting within Apple's own products but steered away from granting the same permission to rivals.
Ann Pope, a former senior official at the UK's Competition and Markets Authority, leads the case. Law firm Hausfeld is coordinating the action, the same firm that has built a track record pursuing platform-gatekeeping claims. Apple told Reuters (Sept 3, 2026) it follows "the exact same requirements as all developers" — a denial the claimants contest.
Regulators already closing in
The UK lawsuit doesn't stand alone. Across Europe, competition authorities have been circling the same issue for years. France fined Apple €150 million in March 2025. Italy followed with a €98.6 million penalty in December 2025. Poland has an investigation ongoing.
Germany moved furthest. In August 2026, the Bundeskartellamt concluded its probe and secured binding commitments from Apple: the company must align its consent prompts so its own services face the same hurdles as third-party apps. An independent trustee will monitor compliance for seven years. Those changes apply EU-wide, per Yahoo Finance / Reuters, and could inform how the UK tribunal weighs the evidence.
The CMA itself has not fined Apple over ATT — unlike its French and Italian counterparts — leaving room for a parallel UK regulatory probe on top of the civil claim.
What comes next
The Competition Appeal Tribunal must first certify the case before it proceeds to a full hearing; no timeline has been confirmed yet. A £1.5 billion App Store collective action, which cleared certification in October 2024, gives developer claimants reason to be optimistic. If the ATT case follows the same path, Apple could be looking at one of the largest platform-liability payouts in UK legal history.
