Comment by isodev

Your iPhone is fully managed by Apple. They control which apps are preinstalled, which apps you can install and uninstall, they can even intervene and install/uninstall apps without your intervention. Your phone needs to communicate with Apple even to just be a phone for calling and SMS. The data from apps is included in your iCloud backups (in addition to the data some apps choose to share with iCloud so it syncs between devices) and so easily accessible. We’re not talking about individual targeting here, but there are no technological barriers to guard against your data being shared by “the platform”.