When I use apps on my phone I communicate with a specific app at any given time. If I'm making a phone-call my inputs go to the phone-app, not to a specific AI

When I use apps on my phone I communicate with a specific app at any given time. If I'm making a phone-call my inputs go to the phone-app, not to a specific AI-app. So if there was an AI-app I would have to separately activate it and talk to it, else it would not be hearing and seeing what I am doing with my gadget. As pointed out by others it is unclear if Apple would like a 3rd party app which sees and hears and can control everything. Whereas a separate gadget can do that. Apple could do that and maybe they will try something like that, but they are not there yet. And Apple's interest is Apple's interest, not your interest. A separate gadget they cannot control.