AdSupport gives apps access to the advertising identifier (IDFA) used for ad attribution and tracking on iOS, macOS, and tvOS. You read this identifier through the shared ASIdentifierManager class, which vends the per-device advertising identifier for use in your attribution and tracking work.
Advertising Identifier 1
Access the per-device advertising identifier (IDFA) for ad attribution and tracking.
- ClASIdentifierManagermacOS 10.14+The object that contains the advertising identifier.