In the modern digital world, the smartphone has become not just a communication device, but a powerful tool for collecting information about the user’s habits, preferences and location. Many device owners notice that after talking about buying a certain item or simply searching for a product in the browser, they begin to see corresponding banners in applications and social networks. This is the result of complex targeting algorithms that analyze your actions to show you the most relevant content. Android devices notice that after talking about buying a certain item or simply searching for a product in the browser, they begin to see relevant banners in applications and social networks. This is the result of complex targeting algorithms that analyze your actions to display the most relevant content.
While personalization may seem convenient, it often violates privacy boundaries and wastes bandwidth. Fortunately, the operating system provides tools to manage these processes. In this article, we will look in detail at how to limit data collection and disable annoying ads, taking back control of your device.
The setup process may vary depending on the version Android and the manufacturer's shell, but the basic principles remain the same for the entire ecosystem. We will look at the standard paths in the settings menu, and also touch on the nuances for devices from Samsung, Xiaomi and other popular brands.
Understanding the advertising identifier mechanism
Targeted advertising is based on the so-called Advertising ID (Advertising ID). This is a unique set of characters assigned to your device that allows ad networks to track your activity across apps without knowing your name or phone number.
When you install a new app, it requests access to this ID to understand the user's interests. If you log into travel apps frequently, the system will mark your ID as a "travel enthusiast" and start showing relevant offers. Disabling or resetting this identifier breaks the connection between your past actions and future advertising.
It is worth noting that completely disabling data collection does not mean the disappearance of advertising as such. You will still see banners, but they will be random and have nothing to do with your personal preferences. This is a trade-off between using services for free and maintaining anonymity.
⚠️ Attention: Some free apps may limit their functionality or require a subscription if you completely deny access to the advertising identifier. This is due to the fact that developers lose the opportunity to monetize their product through impressions.
Basic setup through the Google menu
The most effective way to manage advertising on most smartphones is to use Google’s built-in tools. Since the search giant is the main aggregator of advertising data, the settings in this section affect the entire system as a whole.
First, you need to go to the main settings of your smartphone. Find the section usually called Google or Google Services. Inside this menu, select the item Advertising. This is where the main switch responsible for personalization is located.
In the window that opens, you will see the option Remove advertising identifier or Disable ad personalization. Enabling this feature prevents apps from using your ID to create an interest profile. Also available here is a reset identifier button, which creates a new random set of characters, resetting the accumulated history.
- 📱 Go to
Settings→Google→Advertising. - 🚫 Turn on the toggle switch Disable ad personalization.
- 🔄 Click Reset advertising identifier to clear the history.
- 🔒 Check that the status changes to "Personalization disabled."
☑️ Checking Google settings
Specific settings for different manufacturers
Smartphone manufacturers often add their own layers of personalization on top of the standard one Android. Companies like Samsung, Xiaomi or Huawei have their own advertising services that work in parallel with Google services. Therefore, it is important to check the settings in branded shells.
On devices Samsung with the One UI shell, you need to go to the Privacysection, and then select Advertising. You can disable the use of advertising IDs for interests here. In smartphones Xiaomi (MIUI), the path may look different: Settings → Passwords and security → Privacy → Advertising services.
Some manufacturers also embed their own recommendations into system apps such as Themes, Music, or Browser. These settings are often hidden deep in specific application menus. For example, in the theme store, you need to go to your profile and disable receiving personalized offers.
| Brand | Path to settings | Option name |
|---|---|---|
| Samsung | Settings → Privacy → Advertising | Use advertising ID |
| Xiaomi | Settings → Passwords and security → Privacy | Personalized advertising |
| Google Pixel | Settings → Google → Advertising | Remove advertising identifier |
| Huawei | Settings → Privacy → Advertising and confidentiality | Limit advertising tracking |
What to do if the "Advertising" item is not in the settings?
If you do not find the section you need, try using the search by settings. Enter the word "Advertising" or "Advertising" into the search bar at the top of the settings menu. The system itself will highlight the desired item. Also make sure that you have the latest firmware installed, as the path may have been different in older versions of Android.
Managing application permissions
In addition to system settings, each individual application requests permissions to access various functions of the phone. Often these permissions allow apps to collect data for targeting. Access to location, contacts, microphone and call history can be used to build a detailed portrait of the user.
It is recommended to regularly audit installed apps. Go to the Applications section in the settings and sequentially check the access rights for each of them. Ask yourself: does the flashlight really need access to your contacts or geolocation? In most cases, the answer will be negative.
Particular attention should be paid to social networks and browsers. These apps collect as much information as possible by default. Their internal settings often have separate “Privacy” sections where you can disable data collection to improve the service and display advertising. Ignoring these settings negates efforts to protect privacy at the system level.
⚠️ Attention: Denying geolocation access for maps or navigation will render these applications useless. Be selective and disable only those permissions that are not critical for the operation of a particular service.
Use the "Only while in use" function to access geolocation. This will prevent your location from being tracked in the background when the app is minimized, but will keep it running when you open it.
Reset and remove your digital footprint
Simply turning off personalization may not be enough if your device already has a huge amount of data about your interests. Google and other services store the history of your search queries, video views on YouTube and places visited. This information continues to influence the algorithms even after changing ad settings.
For complete cleaning, you need to use the My Activity tool. By clicking on the corresponding link in your Google account, you can see a detailed chronology of your actions. The system allows you to delete data for a specific day, month, or for the entire period of your account's existence.
It is also recommended to disable saving history in the future. In the same My Activity section, there are toggles for app history, location history, and voice assistant history. Deactivating them will prevent the accumulation of new data that could be used for targeting.
- 🗑️ Go to the My activity section in your Google account.
- ⏳ Select an option Delete activity for and specify the date range.
- 🛑 Disable saving location and application history.
- 🧹 Clear the cache and data of the browsers you use.
Regular cleaning of activity history (every 3-6 months) significantly reduces targeting accuracy, making advertising less intrusive and more random.
Use of third-party protection tools
For advanced users who want to achieve maximum privacy, there are specialized applications and methods. Firewalls, such as NetGuard or RethinkDNS, allow you to block Internet access for specific applications or advertising trackers at the network level, without requiring root access.
DNS filters are also highly effective. By changing the private DNS settings in the Connections → Other connection settings → Private DNSsection, you can redirect requests through a server that automatically blocks advertising domains. A popular option is address dns.adguard.com.
However, using such methods requires caution. Aggressive ad blocking may cause some apps to not load properly without communicating with their servers. In addition, some services can detect the use of blockers and deny access to functionality.
dns.adguard.com⚠️ Attention: Settings interfaces and menu item names may change after operating system updates. If you do not find the specified path, use the search in the settings or refer to the help of the manufacturer of your device.
Does blocking ads via DNS work for YouTube?
Unfortunately, standard blocking via DNS filters most often does not work for advertising inside videos on YouTube, since advertising is loaded from those same domains as the main content. To block ads on YouTube, specialized clients or modified versions of the application are required.
Frequently asked questions (FAQ)
Will advertising disappear completely after personalization is disabled?
No, advertising will not disappear completely. You will continue to see advertisements in your apps, browser, and websites. The difference is that they will no longer be selected individually according to your interests and will be shown in random order.
Does turning off advertising affect the speed of the smartphone?
This does not have a direct effect on the performance of the system. However, if you use third-party ad blockers or change DNS, this may slightly affect the speed of loading pages on the Internet, since requests go through an additional filter.
Do you need to reset your advertising ID regularly?
Yes, periodically resetting the ID (for example, every few months) is useful. This prevents advertising networks from building a long-term and detailed profile of your preferences, constantly resetting the accumulated data about your interests.
Is it possible to disable advertising only in specific applications?
At the system level, it is not possible to disable advertising selectively for individual applications through the privacy settings. However, you can prevent a specific application from accessing the Internet through connection settings or use a firewall to block its network traffic.
Is it safe to use third-party applications to block ads?
It is safe to use verified open source applications from trusted sources (for example, F-Droid or the official developer site). However, downloading random “anti-advertising” utilities from unverified sources can lead to infection of the device with malware.