Sources: Apple plans to file an EU DMA challenge, disputing the EU putting all of the App Store on the DMA list and arguing that the DMA doesn't cover iMessage
Context & Ripple Effects
This is an early test of how broadly the EU can apply the DMA to Apple’s platform and communications services. Subsequent coverage reported that the Commission was leaning toward excluding iMessage from the DMA on business-user reach grounds, while Apple’s wider designation challenge was later reported as covering five App Stores treated as one service.
The dispute matters because it separates two questions that shape Apple’s obligations: whether App Store operations should be assessed together, and whether iMessage meets the threshold for DMA coverage. Later scrutiny of Apple’s anti-steering rules shows the contest would extend beyond designation into enforcement.
First-order effects
- Apple can contest the legal scope of the DMA obligations attached to its App Store operations and iMessage, while EU authorities must defend their designation rationale.
- Developers and iMessage users face continued uncertainty over which platform-opening or interoperability requirements will ultimately apply.
Second-order effects
- The case makes the App Store’s service boundaries a central compliance issue, affecting how Apple and regulators define the unit subject to DMA duties.
- A ruling or withdrawal of iMessage’s designation would give other designated firms a concrete reference point for challenging whether a service meets DMA thresholds.
Third-order effects
- The dispute points to DMA enforcement being shaped not only by compliance investigations but also by court-tested definitions of services, gatekeepers, and their boundaries.
- If challenges narrow designations, the EU may need more granular evidence for each covered service; if they fail, large platforms will face less room to contest the reach of platform-level obligations.
The trend: EU digital-market regulation is moving from broad gatekeeper designations toward legal battles over which individual services fall within the DMA’s scope.