The primary source documentation from the German Federal Ministry of the Interior states that the Mobile Device Verifier Module for the EUDI wallet requires an Apple or Google account. The architecture concept specifies that device integrity verification on Android uses the Google Play Integrity API and on iOS uses Apple DeviceCheck and App Attest services (https://bmi.usercontent.opencode.de/eudi-wallet/wallet-development-documentation-public/latest/architecture-concept/06-mobile-devices/02-mdvm/). These components are listed as mandatory for the wallet application to function.

The document details that the wallet is built as a cross-platform application but delegates hardware-backed attestation and secure element access to the respective mobile OS providers. It outlines the Mobile Device Verifier Module as responsible for checking device trustworthiness before issuing or presenting credentials under the eIDAS framework.

Section references in the same document confirm this dependency exists in the current public architecture concept for wallet development on both Android and iOS platforms.