It couldn't mean when each unit communicates independently to the central location. The app uses the app store independently from the upgrades to purchase upgrades. Instead of talking to the upgrade locally and "carrying the results of the two-way interaction" to the app store.
That's my opinion on the legalese because Apple shows screenshots of the app store in the middle of the communication process.
That's my opinion on the legalese because Apple shows screenshots of the app store in the middle of the communication process.