How to Turn Off Ad Personalization on iPhone and Android

You have probably noticed it: you search for shoes once, and shoe ads follow you for a week. That happens because your phone and your apps build an advertising profile from what you do, then use it to pick ads aimed at you. Turning off ad personalization does not remove ads, but it stops them from being tailored to your behavior. Here is how to switch it off on iPhone and Android, plus the two biggest ad platforms behind most of the ads you see.

Step 1: Turn off personalized ads on iPhone

Apple gives you two separate controls, and you want both.

First, open Settings, then Privacy & Security, then Apple Advertising. Switch off Personalized Ads. This stops Apple from using your activity in its own apps, such as the App Store and Apple News, to target ads at you.

Second, go back to Privacy & Security and open Tracking. Here you will see "Allow Apps to Request to Track." If this is on, apps can ask your permission to track you across other companies' apps and websites. Turning it off blocks those requests entirely, so apps cannot ask in the first place. If you leave it on, you will need to answer each app's prompt individually, so saying no each time has the same effect but takes more effort.

Menu names can vary slightly between iOS versions, but in most recent versions the controls sit under Privacy & Security as described.

Step 2: Turn off personalized ads on Android

On Android, the key control lives in your Google settings. Open Settings, then Google, then look for "Ads" or "Privacy" followed by "Ads." The exact path varies by phone maker, so on some devices you may need to search Settings for "Ads" to find it.

You will see an option to delete your advertising ID, or to opt out of ads personalization on older versions. Deleting the advertising ID is the stronger choice. It removes the identifier advertisers use to recognize your device, and apps get a blank one instead. Note that some apps may show a one-time prompt after you do this, and a few features that rely on the ID, such as certain rewards apps, may behave differently.

Also check Settings, then Privacy, then Permission Manager, and review which apps hold permissions they do not need, such as location access for a flashlight app. Cutting unnecessary permissions shrinks the data available for profiling in the first place.

Step 3: Switch off Google ad personalization

Your phone settings cover the device, but Google also personalizes ads on the web using your account. Open a browser and go to adssettings.google.com, signed into your Google account. Switch off "Ad personalization." This tells Google not to use your account activity, searches, and YouTube history to tailor ads.

This control is separate from your device setting, so it is worth doing both. Also note that turning off ad personalization does not delete your activity history. If you want that gone too, handle it at myactivity.google.com, where you can delete past activity and set auto-delete.

Step 4: Switch off Meta ad preferences

Facebook and Instagram run one of the largest ad systems outside Google. To limit it, open the Facebook app or site, go to Settings, then Accounts Center, then Ad Preferences. Look for the option about using your activity to show personalized ads and switch it off. You can also review the advertisers that have uploaded lists containing your information and remove yourself from them.

Because Instagram shares the same Accounts Center, changing it once generally applies across both apps. Still, it is worth opening Instagram's own settings afterwards to confirm the change carried over, since app versions sometimes present the options differently.

Step 5: Clean up in-app and browser ad tracking

A few more quick wins round out the job:

• In your browser. Turn on "Do Not Track" or the equivalent privacy setting, and consider clearing cookies periodically. Cookies are one of the main ways advertisers recognize you across websites.
• In individual apps. Some popular apps, such as shopping and social apps, have their own "personalized ads" switches buried in their settings. If an app shows you suspiciously well-targeted ads, search its settings for "ads" or "privacy" and switch personalization off there too.
• After a reset. If you ever reset your advertising ID on Android or reinstall apps, check these settings again. Some controls revert to defaults after a major update or a fresh install.

What changes, and what does not

Once you have done all five steps, ads will still appear, but they will be generic rather than based on your searches, purchases, and app use. You may see ads that feel less relevant, which is exactly the point. Your phone will also send less behavioral data to ad networks, which is a real privacy gain even if the change is invisible day to day.

One honest limit: turning these switches off does not stop companies from collecting all data, and it does not make you anonymous online. It limits how your data is used for ad targeting. For stronger privacy, combine these steps with a private browser, a VPN on public Wi-Fi, and regular permission reviews.

Frequently Asked Questions

Will turning off ad personalization remove ads completely?

No. You will still see ads, but they will be generic instead of tailored to your searches, purchases, and app activity. The number of ads does not change, only how they are chosen.

Do I need to change settings on both my phone and my Google account?

Yes, they are separate controls. Your phone setting covers device-level ad identifiers, while adssettings.google.com covers ads Google shows based on your account activity. Changing both gives you the full effect.

Why do I still see relevant ads after turning everything off?

Some ads look personal by coincidence, and some apps have their own ad settings you have not switched off yet. Check the settings inside individual apps, clear cookies, and give it a few days, since cached ad profiles can take time to expire.