The Apple Account ID currently signed in on an iOS device. It seems difficult to retrieve this information. However, we can retrieve a hashed version of the Apple Account ID. The Managed Apple Account ID associated with the Apple Business Manager (ABM) or Apple School Manager (ASM) account that manages the Apps and Books token. We were able to retrieve both using APIs. We originally wanted to compare the Apple Account ID currently signed in on the device with the Managed Apple Account ID, but it seems that this is not possible.