After all, I find it really strange that all I need to do is have a conversation in the same room as my Iphone and all of a sudden, the google adds match what I was discussing. Apple denies this, but it seems to have happened to me way too often to be a coincidence.
Are you serious? Holy crap. I know those in-home smart devices like Amazon Echo and Google Home are for sure doing it. Which is why I will never own such a device. Just never heard of an instance where phone is capturing voice like that off-calls. Wouldn't surprise me though. A scary invasion of privacy and personal security.
Yes, I have had a conversation with my partner about a local restaurant we enjoy. No google search on any device. No recent posts on social media about the restaurant. Suddenly, up pops the ad on Facebook for this restaurant. (Not a national franchise.) May be a feature of the Facebook app though. But if a Facebook app can do it, not sure what would prevent any other app from doing it as well. Or even the firmware of your Iphone.
http://www.dailymail.co.uk/sciencetech/article-5200661/Is-phone-listening-word-say.html