Is My Phone Listening to Me? The Truth About Ads

Is my phone listening to me? I asked myself this question last year, and I think almost everyone with a smartphone has asked it at least once.

Here is what happened. I live abroad, and one afternoon I was talking with a friend about sports. We both wanted to join group Pilates or yoga classes. The problem was the language: almost all classes here are taught in the local language. We said how great it would be to find a coach who speaks our native language, so we could really understand every exercise.

My phone was in my pocket. No headphones. I didn’t search for anything.

That evening I opened Instagram, and almost every ad in Reels was about sports and group classes.

Why is my phone listening to me: phone on a sofa showing a Pilates class ad in the evening — That evening, every second ad was about Pilates.

But here is the interesting part. The ads were not perfect. They “heard” the group classes, but they missed the most important detail: the language of the coach. Not one ad offered a teacher who speaks my language.

So was my phone really listening? Let’s look at the facts.

Is My Phone Listening to Me? The Short Answer

Probably not in the way you think. There is no strong proof that big apps like Instagram, Facebook or TikTok secretly record your conversations to show you ads.

In 2018, researchers at Northeastern University tested more than 17,000 popular Android apps. They did not find a single app that secretly sent audio recordings. But they found something else: some apps were sending screenshots and screen videos of what users did in the app to other companies.

So the microphone is probably quiet. Your phone just knows a lot about you in other ways.

Why Does It Feel Like My Phone Is Listening?

“Hey Siri” and “Hey Google”

I have an iPhone, and my daughter has an Android. We both have “Hey Siri” and “Hey Google” turned on. This means the phone is always waiting for its wake word. Apple says that on newer iPhones, Siri requests can be processed directly on the device, and that it has never used Siri data to build marketing profiles or sold it to anyone.

Still, wake words are not perfect. Sometimes the assistant wakes up by mistake. In 2025, Apple agreed to pay $95 million to settle a lawsuit claiming that Siri recorded people without “Hey Siri.” Apple did not admit any wrongdoing.

Location, searches and friends’ data

This is the part most people forget. Your phone knows where you are, which places you visit, what you search for and who you spend time with.

Maybe my friend had searched for Pilates studios that week. Our phones were in the same place at the same time. For an ad system, that is a strong signal: “These two people are together, one is interested in Pilates, so show Pilates to both.”

The coincidence trap

We see hundreds of ads every day and forget most of them. But when an ad matches our conversation, we remember it forever. Psychologists call this the frequency illusion: once something is on your mind, you notice it everywhere.

Is My Phone Listening to Me for Ads? What Studies Found

The fear is not crazy. In 2024, a leaked pitch deck from the US media company Cox Media Group described an “Active Listening” service. It claimed to use voice data from smart devices to target ads. After the news, Google removed the company from its Partner Program, and the service was taken off the company’s website.

So someone did try to sell this idea. But there is no proof that it worked at scale or that big platforms used it.

I work in digital marketing, and here is my professional view. Building ads on real voice recordings would be very expensive and risky. Advertisers have much cheaper ways to find you: your location, your searches, your likes, the accounts you follow and your friends’ interests. These methods work well enough, and they leave people more choice through privacy settings.

And remember my Pilates story? If my phone had really been listening, it would have heard the most important part: “a coach who speaks our language.” The ads missed it. To me, that looks more like targeting by location and interests than by voice.

What Your Phone Really Knows About You

Even without the microphone, your phone can know:

Where you are and where you go every day
What you search for and which websites you visit
What you like, watch and share on social media
Who you are with (phones near each other)
What you buy online and sometimes in stores
Your daily routine: when you wake up, work and sleep

Many Americans feel uneasy about this. In a 2023 Pew Research Center survey, 81% of US adults who had heard of AI said companies will use the information they collect in ways people are not comfortable with. AI makes this kind of data even more powerful, and I wrote more about voice assistants we use every day and how AI hides in ordinary apps.

How to Check Which Apps Use Your Microphone

On iPhone

Look for the orange dot at the top of the screen. It means the microphone is in use right now.
Go to Settings → Privacy & Security → Microphone and turn off apps that don’t need it.

On Android

Look for the green microphone icon in the top corner of the screen.
Go to Settings → Security & privacy → Privacy → Permission manager → Microphone. The names can be a little different on different phones.

How to Turn Off Listening and Stop Phone Tracking

Turn off “Hey Siri”: Settings → Siri → Talk to Siri (or “Listen for”) → Off.
Turn off “Hey Google”: open the Google app → your profile picture → Settings → Google Assistant → Hey Google & Voice Match → Off.
Stop app tracking on iPhone: Settings → Privacy & Security → Tracking → turn off “Allow Apps to Request to Track.”
Delete your ad ID on Android: Settings → Privacy → Ads → Delete advertising ID.
Check Instagram and Facebook ad settings: Accounts Center → Ad preferences.
Turn off location for apps that don’t need it.

So, Should You Worry?

Personally, I don’t. I am an open person, I don’t break the law, and I have nothing to hide. Unless you are planning a crime, your phone’s guesses are mostly about yoga mats and coffee machines. I don’t feel that someone is crossing my personal boundaries.

But I understand people who feel differently. Privacy is a choice, and the good news is that you have tools to control it. Check your settings once, and decide what feels right for you.

The real answer to “Is my phone listening to me?” is probably no. It doesn’t need to. It already knows enough.

Has your phone ever “heard” you? Tell me your story in the comments.

Is My Phone Listening to Me? What Your Phone Really Knows About You