How to disable advertising on an Android smartphone

Modern smartphone users are faced with intrusive advertising everywhere. Pop-up windows, banners in games and aggressive notifications interfere with comfortable use of the device. Advertising on Android is often a result of installing free applications or incorrect system settings. However, there are many effective methods to reduce the amount of advertising content to a minimum.

In this article we will examine in detail the technical methods of blocking ads without the need to obtain superuser rights. You'll learn how to set up a personal DNS server, manage application permissions, and identify malware. A comprehensive approach to device security will allow you to regain control of your gadget and enjoy a clean working environment.

Setting up a private DNS to block ads

One ​​of the most effective and safest methods is to use the function private DNS. This technology allows all requests from your device to be redirected through a server that automatically filters advertising domains. Unlike installing third-party applications, this method works at the system level and does not require a constant active connection with the background processes of the blocker.

To activate the function, you need to go to the settings of your Androidsmartphone. The path may vary slightly depending on the manufacturer's shell, but it is usually located in the networks section. You need to find the item Settings → Connections → Other connection settings → Private DNS. If you have a clean Android, the path may look like Settings → Network and Internet → Private DNS.

In the menu that opens, select the mode “Private DNS Provider Hostname” (or “Manual”). In the input field you must enter the address of a reliable blocker. The most popular and proven option is the AdGuard DNS service. Enter the following line: dns.adguard.com. After saving the settings, the system will begin to filter traffic, discarding requests to known advertising servers.

It is important to understand that this method blocks advertising mainly in the browser and some applications that use standard network protocols. Video advertising within YouTube or native advertising on large social networks are not eliminated in this way, since they use the same domains as the main content. However, for general cleaning of the Internet from banners, this solution is optimal.

Managing notifications and intrusive alerts

Often users confuse advertising on the Internet with Push notifications from sites and applications. Attackers can trick you into subscribing to a dubious resource's mailing list, after which your phone screen is constantly filled with pop-up messages. To stop this flow, you must manually revoke permissions from suspicious sources.

Go to the section Settings → Applications and notifications → Notifications. Here you will see a list of all apps that have the right to send you messages. Please study the list carefully. If you see the names of unknown sites, browsers with strange names, or applications that you don’t use, immediately turn off the notification slider for them.

• 🔍 Check your browsers: often ads come from Chrome or Yandex Browser if you accidentally allowed the site to show notifications. Go to the settings of your specific browser and clear the list of allowed sites.
• 🚫 Blocking pop-ups: in the notification settings, find applications that show ads on the entire screen and block them from displaying on top of other windows.
• 📂 Sort by importance: use the “Notification Categories” function inside the application settings to disable only advertising ones mailings, leaving important system messages.

Particular attention should be paid to trash applications, flashlights, QR code scanners and simple games. They are the ones who most often abuse the right to send notifications. If an app is not mission-critical, it is easier to remove it completely than to deal with its aggressive marketing. Remember that free utilities are often monetized precisely due to your attention to advertising.

⚠️ Attention: If you see a notification that cannot be dismissed or it appears even after restarting the phone, this is a sign of malware. In this case, you need to go to safe mode and remove the suspicious application through the settings.

Identification and removal of malicious applications

Sometimes advertising appears due to a hidden virus or Trojan that disguises itself as a system process. Such apps may not have an icon in the application menu, but actively work in the background. To detect them, you should use built-in diagnostic tools or third-party antiviruses.

The first step is to check the list of installed apps. Go to Settings → Applications → All applications. Scroll to the very end of the list and to the very beginning. Look for apps without a name or with a blank icon. Often viruses are hidden at the end of the list or have names that imitate system services, for example System Update or Wi-Fi Service, but with a suspicious developer.

If you find such an application, click on it and select button Delete. If the button is inactive, it means that the malware has received device administrator rights. In this case, you need to go to Settings → Security → Device administrators (the path may differ on different models Samsung, Xiaomi or Huawei) and uncheck the suspicious app. Only after this can it be deleted.

Virus sign	User action	Data risk
Rapid battery drain	Checking usage statistics in settings	High (data theft)
Case heating at rest	Running anti-virus scan	Medium (use resources)
Appearance of new icons	Immediate removal of unknown applications	Low (spam)
Pop-up advertising on the desktop	Search for an application without an icon in the list apps	High (redirect to phishing)

What to do if the virus is not removed?

If standard removal does not help, boot your smartphone into safe mode. To do this, you usually need to hold down the power button and hold the “Shut down” item on the screen for a long time until you are prompted to reboot into safe mode. Only system applications work in this mode, which will allow you to remove the virus without interference.

Advertising ID reset and personalization

Google and application developers use a unique advertising identifier (GAID) to track your interests and display targeted advertising. While it is difficult to completely disable data collection, you can reset this ID or limit its use. This makes your profile less “transparent” for advertising networks.

To perform this operation, go to the Settings → Google → Advertisingsection. Here you will see two important options. The first is “Remove Advertising ID” (or “Reset”). Pressing this button creates a new random number, breaking the connection with your previous browsing history. The second option is “Turn off ad personalization.” Activating this switch prevents your data from being used to select ads, although the number of ads may not decrease, they will become less relevant.

Regular ID reset is recommended every few months. This makes it difficult for marketers to build your digital profile. However, it is worth considering that some free services may work less correctly or require re-setting preferences after a reset.

⚠️ Attention: Disabling ad personalization does not mean the complete disappearance of banners. You will still see ads, but they will be random and not based on your search queries and geolocation.

Using browsers with built-in protection

Since most of the advertising is consumed through web browser, replacing the standard browser with a more secure analogue can radically change the experience of using the network. Standard Chrome or built-in shell browsers often skip a lot of advertising junk unless special extensions are installed.

It is recommended to use browsers with an engine that supports content blocking at the kernel level. An excellent choice is Brave, which has a built-in shield Brave Shields. It automatically blocks trackers, mining scripts and advertising banners without the need for complex configuration. Privacy-oriented also works well. DuckDuckGo Browser, privacy-oriented.

If you prefer to stay in the ecosystem of popular browsers such as Android, you can install add-ons. The mobile version Firefox for Android, you can install add-ons. In mobile version Firefox supports installation of extensions uBlock Origin. This is one of the most powerful filters that effectively cuts out advertisements even from heavy media portals. To install, go to the browser menu, select “Add-ons” and activate the desired plugin.

Do not forget to clear your browser cache and cookies periodically. The accumulated data can be used for retargeting - a situation where advertising follows you after visiting a specific online store. Clearing browsing data removes these traces and resets session bindings.

Ad blocking in specific applications and games

The most difficult category of advertising is those that are built directly into the code of free applications and games. Developers make money by displaying banners and videos between levels. Completely removing such advertising without paying for the premium version (Donation) is technically difficult and often violates the terms of use of the service.

However, there are workarounds. Using Airplane Mode before launching an offline game will often prevent the ad module from loading because the app does not have network access to receive the banner. This method only works for games that do not require a constant connection to the server.

For applications that require the Internet, you can try to limit background data transfer. Go to Settings → Applications → [Select an application] → Mobile data and turn off “Background Mode”. This will not remove advertising during active use, but it will prevent content from loading when the phone is in your pocket, saving traffic and battery.

There is a category of applications that display advertising on top of other windows. To combat this, in your phone settings, find the section Accessibility → Access on top of other applications (or “Overlay on top of other applications”). Revoke this permission from all apps except instant messengers and system utilities. This will prevent advertising from blocking the interface of other apps.

⚠️ Attention: Using modified versions of applications (MOD) with cut out advertising carries a high security risk. Such files often contain hidden Trojans. Download software only from the official store Google Play.

Is it safe to use applications to block ads from third-party sources?

Using applications like AdGuard (full version) or Blokada downloaded from official developer sites, generally safe. They work as a local VPN filter. However, downloading similar utilities from dubious forums can lead to infection of the device. Always check the digital signature of the application and the reputation of the developer before installing APK files.

Why do ads return after resetting the settings?

A full factory reset deletes all user data and installed applications. However, if you restore a Google cloud backup, the virus or adware may automatically reinstall itself along with the rest of your data. After resetting, it is recommended to set up your phone as new and install applications manually.

Does blocking ads affect Internet speed?

On the contrary, blocking ads often speeds up page loading. The browser does not need to download heavy graphic banners, video previews, or run tracking scripts. This saves mobile traffic and reduces the load on the smartphone's processor, which is especially noticeable on weak devices or with a slow connection.

Is it possible to officially block ads on YouTube?

The official way to remove ads in the YouTube application is to subscribe to YouTube Premium. Third-party clients (for example, NewPipe or modified versions of YouTube Vanced, which is no longer officially supported) allow you to watch videos without unnecessary fuss, but their use violates Google's terms of service and can lead to account blocking.

How to distinguish a system notification from an ad virus?

System notifications usually come from well-known services (Gmail, Telegram, Settings) and have a clear application icon. An adware virus is often disguised as a system message (“System update”, “Virus detected”), but when clicked, it leads to a browser or offers to install a dubious application. Always check the source of the notification in the notification shade by holding it with your finger.