I was recently in a Best Buy store after a long while and noticed that front and center in Best Buy is a big section on Smart Home devices. Most are compatible with Alexa and Google only. Few are compatible with Apple HomeKit. I don't think I ever even opened the iOS HomeKit app. But maybe it doesn't matter for us consumers as we just need to install the appropriate iOS app, like for example, Amazon's Ring app. It seems Apple has missed an opportunity, not that they were out competed. It seems Apple chose to not to participate from the very beginning. They could have easily gotten involved with 'nest' because Tony Fadell was one of the founders of nest?? They chose to not develop and be in the WiFi router market.