Overview
- The claim was filed at London's Competition Appeal Tribunal on Thursday, Sept. 3, 2026, by ATT Collective Action Limited and is an opt‑out collective action that automatically covers eligible UK app developers unless they opt out.
- Plaintiffs say Apple’s App Tracking Transparency prompts, introduced in 2021 to require user permission for cross‑app tracking, were designed or applied in ways that discouraged consent for third‑party apps while allowing more favourable outcomes for Apple’s own services.
- Claimants led by Ann Pope and represented by Hausfeld seek roughly £2 billion in compensation for lost advertising revenue and higher user‑acquisition costs that they link to lower post‑ATT opt‑in rates.
- Apple rejects the allegations and says ATT was built to protect user privacy and applies equally to all developers, while European regulators have already fined Apple in France and Italy and Germany ordered ATT prompt changes that Apple agreed to implement EU‑wide.
- The Competition Appeal Tribunal has not yet certified a hearing date, so the case’s next steps are procedural certification and potential court scheduling, and a ruling could widen remedies sought by developers beyond regulatory fines.