This keeps getting brought up and it's simply not true. No, your phone isn't listening to you, plenty of tests have been done. It could easily be traceable with higher CPU usage, higher battery usage, network usage and so on, but there is zero difference between having a conversation next to your phone or the phone being in a literal sound proofed room.
Meta data, people you spend time with, what you look up online, your age, your hobbies, your interests, ads you have recently seen, location data, .. there's so much about you online that it's easy to predict.
And sometimes you talk about things because everyone else is talking about them. You're not that special.
It can be a bit scary how much you can predict about a person by just using a few simple facts (sex, age, location, income, ..).
I don't know if phones are listening with an open mic, but I have no doubt they're doing things like scraping text messages. I sent my wife a text saying "I need new dress shoes for work" then went to Amazon and the front page was filled with men's dress shoes. And yes, I confirmed she hadn't searched for them first.
I experienced something different the other day. I was watching despicable me 4 on my PC and at the end of the movie they sang "everybody wants to rule the world" a few hours later I went to YouTube and on the home page is a video titled "the meaning behind the lyrics of everybody wants to rule the world". real freaky. I never searched for the song in any form on YouTube.
My brother was in the car with me and my wife and my brother told me one of his students told him he had ADHD. When we got home and my wife's TikTok was full of ADHD videos.
I was just talking about this recently on here I think. I actually had a chance to dispel this myth a bit with a family member who came to stay with me recently.
They are convinced that their news feeds and ads constantly come up with topics that would be too coincidental to explain any other way than their smart devices are constantly recording their verbal conversations. Conveniently enough, it happened several times during their visit!
As examples, the family member and I talked about how we like okra and they mentioned it had been a long time since they had good okra. Afterwards, stories and recipes for okra started showing up in their news feed. We also chatted for a bit about a specific actor that used to be in a bunch of movies, but that we don't really see them in much of anything anymore. Then they started getting ads for that actor's movies. This happened with a couple more things as well.
In the end, it was all completely explainable.
After the okra conversation, I looked up okra recipes because I intended to make some as part of meal for us since we both enjoy it and hadn't had it for awhile. Since we're both on the same wifi (and thus have the same IP address externally), those news items were almost certainly triggered by my recipe search.
For the famous actor, my family member had been watching some of his old movies on one of our streaming services that they don't have at home, so they were trying to catch up on things they'd like to see while they were visiting. It's not hard to imagine if you watch a couple Tom Hanks movies on Hulu (no that's not the actual actor or service), then you might start seeing ads for related movies that he may also have starred in, again, given that your smart devices are on the same wifi and have the same IP as mine.
Is there any kind of knowledge or research about that available by now, or are we still only talking about the one time we sat in the kitchen with friends and talked about gay dolphins and suddenly the Internet was full of reports about it (which might have been selective perception or however it's called)
Everybody at the comments are telling about how apps indeed monitor our microphones, but have you experience apps monitoring thoughts? Exactly, mind reading! Once I thought a specific philosophical phrase (yet I don't remember which one it was), and few minutes later a video platform recommended a deep-thought video containing such exact phrase. I didn't even say the phrase outside of my "mind's voice", let alone typing/writing it. I dunno what kind of sorcery they used, but it happened a couple of times. Fact is that the app did, somehow, "read my mind". It was this video platform only, I didn't see other apps doing the same outside of recommending/showing things spoken near the mic or written somewhere.
The best way to get rid oft the spy crap entirely is to get a pixel phone and flashing GrapheneOS (de-googled Android). Dw, it's not that hard to do, there's a good manual. Sure you need to find alternatives to google apps, but so far I could get replacement apps for almost everything FOSS from F-Droid store. Some apps cry for play services from time to time, but only a few of them won't work at all without them. Most of the time it can be ignored. You are able to install a defused sandboxed version if something really needs it tho. If you need an app from play store you can use Aurora Store (Foss play store client). Even E-SIM works without problems. And the best is 7 years guaranteed updates starting with the phone release. The a series is quite cheap (got Pixel 8a for ~460€). I can only recommend this setup.
Discussed whether I liked Knix bras with a coworker today, got a bunch of Knix ads all over shortly after. And I turn my microphone access off on most apps.