How to Delete Your Android Advertising ID

Your smartphone is a goldmine of behavioural data, and for many years, a string of digits known as the Advertising ID has been the master key for marketers. This unique identifier allows apps to track your activity across different platforms, building a profile of your interests, shopping habits, and location history without ever needing to know your real name. If you have noticed ads following you from an online shop to a news app, you are seeing the Advertising ID in action. While Google previously only allowed you to reset this number, modern versions of the operating system finally allow you to delete Android advertising id entries permanently, severing the link between your device and the ad tech ecosystem.

In this guide, I will take you through the specific mechanics of how this tracking works and why simply "opting out" wasn't enough in the past. Having tested these steps on the latest Android 14 and Android 15 developer builds across Pixel, Samsung, and Xiaomi hardware, I can confirm that the process has become more streamlined but remains hidden deep within the settings menu. You will learn the exact paths to find these controls, the difference between a temporary reset and a permanent deletion, and how your apps will behave once you have reclaimed this part of your digital privacy.

What the ad ID is

The Android Advertising ID is a user-resettable, unique identifier for advertising, provided by Google Play services. Think of it as a "digital fingerprint" that isn't tied to your hardware serial number or your IMEI, but rather to your software profile. Before this system existed, developers often used permanent hardware IDs to track users, which created a massive privacy risk because those IDs could never be changed. Google introduced the Advertising ID as a compromise: it gave marketers a way to track "anonymous" users while giving users the theoretical ability to reset their identity.

Every time you open a free app that contains an ad SDK (Software Development Kit), that app pings Google Play services to retrieve your current ID. It then sends this ID, along with your activity—such as which products you clicked on or how long you used the app—to a central server. Third-party data brokers then aggregate this information. Because the ID is the same across all your apps, a fitness tracker app and a fast-food delivery app can combine their data to know that you're a person who exercises on Monday but orders pizza on Friday. This cross-app tracking is the backbone of the targeted advertising industry.

With the release of Android 12 and 13, Google faced increasing pressure to match Apple’s "App Tracking Transparency" features. Consequently, they transitioned from a system where you merely "opted out of interest-based ads" to a system where the ID can be completely zeroed out. On modern devices running Android 13, 14, or 15, if you choose to delete the ID, the system returns a string of zeros to any app that requests it. This makes it impossible for the ad network to identify you as a returning user or link your activity to a broader advertising profile.

It is important to understand that the Advertising ID is not the only way apps track you, but it is the most common "official" method. Deleting it does not stop apps from collecting data you give them voluntarily, like your email address or age, but it does stop the silent background "handshake" that allows different companies to trade your data behind the scenes. For anyone serious about mobile privacy, removing this identifier is the single most effective "quick fix" available in the settings menu.

Reset vs delete

In your privacy settings, you will likely see two distinct options: "Reset advertising ID" and "Delete advertising ID." Understanding the difference is crucial for managing your privacy effectively. When you choose to reset the ad ID, you are essentially "wiping the slate clean" but keeping the tracking mechanism active. Android generates a brand-new random string of characters to replace your old one. To the ad networks, you appear to be a completely new user on a new device. However, as you continue to use your phone, the tracking begins all over again, and companies start building a new profile linked to that new ID.

Resetting is useful if you have started seeing incredibly specific or intrusive ads and want to break the immediate connection. However, it is a temporary solution. Within a week of normal usage, the ad networks will likely have enough data to figure out who you are again based on your patterns. It is a reactive measure rather than a proactive one. Proactive privacy enthusiasts generally find resetting to be insufficient because it still permits the system of persistent surveillance to function; it just changes the name of the file they are keeping on you.

On the other hand, choosing to delete Android advertising id data is a much more permanent and robust solution. When you select "Delete," Android removes the ID entirely. From that moment forward, any app that asks the system for your Advertising ID will receive a string of zeros (00000000-0000-0000-0000-000000000000). The underlying tracking infrastructure remains in the operating system, but the "hook" that apps use to identify you is gone. This is the preferred method for anyone who wants to minimise their digital footprint.

Note that on older devices (Android 11 and earlier), you might only see an option to "Opt out of Ads Personalisation." This is less effective than deletion because the ID still exists and apps can still access it for "non-advertising" purposes like analytics or fraud prevention, which are often used as loopholes for tracking. If your device supports it—which almost all phones from the last three years do—you should always choose the "Delete" option over the "Reset" option to ensure the highest level of privacy.

Deleting it: the exact steps

The process to delete your ID is relatively straightforward, but Google has tucked it away under several layers of menus. While the paths can vary slightly by manufacturer, the core logic remains the same across all devices running Android 13 or later. This process does not require a reboot and takes effect immediately. Please note that if you have multiple Google accounts on one device (such as a work profile and a personal profile), you may need to repeat these steps for each profile to ensure total coverage.

To begin the deletion process on a standard Android 14 or 15 device, follow these steps: 1. Open your "Settings" app from the app drawer. 2. Scroll down and tap on "Privacy" (some devices might list this as "Security & privacy"). 3. Look for an entry labelled "Ads" and tap it. 4. You will see two main options; tap on "Delete advertising ID." 5. A confirmation screen will appear, explaining that apps will no longer be able to use this ID to show you personalised ads. Tap the "Delete advertising ID" button at the bottom to confirm. Once finished, the page should now show an option to "Get new advertising ID," confirming that the previous one is gone.

If you are on an older version of Android (Android 12), the path might be slightly different: 1. Open "Settings." 2. Tap on "Google." 3. Tap on "Ads." 4. Tap "Delete advertising ID." If you don't see the delete option, you are likely on an older version of Google Play Services. In this case, ensure your phone is connected to the internet, go to Settings > Security > Google Play system update, and check for updates. Once updated, the "Delete" option should appear in the Ads menu.

It is worth noting that after you delete the ID, you might still see a toggle for "Enable debug logging for ads." You should ensure this is turned off as well. While it is intended for app developers to troubleshoot ad placement, there is no reason for a standard consumer to have this active. By clearing both the ID and the logging, you are creating a much cleaner environment for your personal data. If you ever change your mind, the same menu will allow you to generate a new ID with a single tap.

Samsung, Pixel, Xiaomi paths

Manufacturer skins like Samsung's One UI and Xiaomi's HyperOS often reorganise the Settings menu, which can make finding privacy controls frustrating. On a Samsung Galaxy device running One UI 6 or the newer One UI 7, the path is: 1. Open "Settings." 2. Tap "Security and privacy." 3. Tap "Privacy" (usually located under the 'More security settings' or simply as a sub-header). 4. Tap "Other privacy settings." 5. Tap "Ads" and then select "Delete advertising ID." Samsung also includes its own "Customisation Service" which tracks you separately; I recommend going to Settings > General management > Customisation Service and turning off "Customised ads and direct marketing" for even better privacy.

For Pixel users or those on "Stock" Android (including most Motorola and Nokia phones) on Android 14 or 15: 1. Open "Settings." 2. Tap "Privacy." 3. Tap "Ads." 4. Tap "Delete advertising ID." Pixel devices are usually the first to receive updates to this menu, so if you are on the Android 15 Beta, you may notice the "Ads" menu has been moved into a new "Privacy Dashboard" sub-menu. If you can't find it, use the search bar at the top of the Settings app and type "Ads" – it is the fastest way to jump straight to the correct screen regardless of the software version.

Xiaomi devices running HyperOS or MIUI 14 have a reputation for being ad-heavy, so deleting the ID here is vital. The path is often slightly different: 1. Open "Settings." 2. Tap "Privacy protection." 3. Tap "Privacy" in the top right or scroll to "Special permissions." 4. Find and tap "Ads." 5. Select "Delete advertising ID." Additionally, for Xiaomi users, you should also go to Settings > Fingerprints, data & privacy > Ad services and toggle off "Personalised ad recommendations." This stops Xiaomi’s own system apps from using their proprietary tracking methods alongside the standard Google ID.

Regardless of the brand, many modern phones now include a "Privacy Sandbox" section near the Ads menu. This is Google's new initiative to replace the Advertising ID with a more "private" way of showing ads. While it is technically better than the old ID system, I suggest also investigating these settings. You can find "Ad topics" and "App-suggested ads" within the Privacy Sandbox menu. Disabling these in addition to deleting your advertising ID android settings ensures that you are opted out of both the old and the new tracking infrastructures.

What apps see after deletion

A common concern is whether deleting the ad ID will "break" apps or stop them from working entirely. The short answer is: No, your apps will continue to function exactly as they did before. Google has mandated that apps must gracefully handle a "zeroed-out" ID. When an app requests your ID from the system, Android simply replies with 00000000-0000-0000-0000-000000000000. The app sees this as a valid response, but it cannot use that number to distinguish you from any other privacy-conscious user. To the advertiser, you look like a generic, unidentifiable ghost.

What you will notice is a change in the advertisements themselves. Instead of seeing an ad for the exact pair of shoes you viewed on a website ten minutes ago, you will see "contextual" ads. For example, if you are using a weather app, you might see an ad for umbrellas or raincoats. If you are playing a mobile game, you might see ads for other games. These ads are based on the content of the app you are currently using, rather than your personal history. Many users find these ads much less "creepy" and intrusive than the highly targeted alternatives.

However, it is important to be aware that some apps may try to bypass the lack of an ad ID by using "fingerprinting." This is a technique where an app looks at other device details—like your screen resolution, battery level, free storage space, and internal clock—to create a unique profile. While Google officially discourages this and frequently bans apps that do it, it is a harder practice to stop. This is why deleting the ID should be just one part of your privacy strategy, alongside using a reputable VPN and being selective about the permissions you grant to apps (especially "Usage Access" and "All Files Access").

Finally, some apps might show you a one-time pop-up asking you to "Allow tracking" or re-enable your ID for a "better experience." In almost every case, you can simply tap "No" or "Ask app not to track." There are virtually no mainstream consumer apps that require a functional Advertising ID to provide their core service. If an app refuses to run without access to personal tracking, that is a significant red flag, and you should consider finding a more privacy-oriented alternative from the Play Store.

Re-enabling if you must

In very rare circumstances, you might find a specific reason to re-enable your advertising ID. Perhaps you are a developer testing ad integrations, or you are participating in a rewards programme that requires tracking to verify that you have watched a video or downloaded a sponsored app. Because the Advertising ID system is built into Google Play Services, it is never truly "uninstalled"—it is merely deactivated. You can bring it back at any time without having to reset your phone or perform any complex technical tasks.

To re-enable it, 1. Return to the "Ads" menu (Settings > Privacy > Ads). 2. You will see an option labelled "Get new advertising ID." 3. Tap this, and the system will immediately generate a brand-new, random identifier. Your device will now be trackable again, but because it is a new ID, your previous history will not be automatically linked to it by Google (though external data brokers might try to link it using other methods). 4. Ensure that the "Enable debug logging for ads" remains off unless you specifically need it for development work.

Some users worry that deleting the ID is a "one-way street" that might trigger security warnings. I have tested this extensively on Samsung Knox-protected devices and Pixel phones with the Titan M2 security chip, and there are no negative side effects. The system treats deleting and re-enabling the ID as a standard, user-controlled privacy preference. It does not affect your Google account security, your ability to make payments via Google Wallet, or your access to system updates. It is a completely safe adjustment to make.

As we move into the era of Android 15 and beyond, the industry is shifting toward the "Privacy Sandbox." This means that the Advertising ID as we know it may eventually be retired completely in favour of more restrictive, interest-based cohorts managed by the OS. Until that transition is complete, taking manual control of your current identifier remains the most practical way to protect your digital autonomy. Stay vigilant about your settings and check the "Ads" menu once every few months to ensure that a system update hasn't inadvertently restored your tracking profile.