How to Block Ads on Your Phone and Browser in Canada

Ads on a phone are hard to ignore. They pop up in free apps, follow you between websites, and autoplay videos that eat your mobile data. Some are merely annoying. Others are misleading, pushing fake deals or trying to trick you into installing something you do not want. The good news is that blocking most of them takes a few minutes of setup, and you do not need to pay for anything to do it. This guide covers the browser, the apps, and the whole device, in that order.

Step 1: turn on your browser's built in blocking

On iPhone, Safari has a built in pop up blocker and tracking prevention. Open Settings, then Safari, and make sure Block Pop-ups is on and Prevent Cross-Site Tracking is on. For stronger blocking, you can add a content blocker from the App Store. Look for a well reviewed free option such as AdGuard or 1Blocker, install it, then go back to Settings, then Safari, then Extensions, and turn it on.

On Android, Chrome does not support full ad blocking extensions the way desktop Chrome does, but it does have useful controls. Open Chrome, tap the three dots, then Settings, then Site settings. Turn on the pop up and redirect blocker, and check the intrusive ads setting, which blocks ads on sites that repeatedly show misleading or aggressive advertising. For stronger blocking, switch your default browser to Firefox, which supports ad blocking extensions on mobile, or Brave, which blocks ads and trackers by default.

Step 2: block ads inside apps, not just websites

Ads inside apps need a different approach, because they do not run through your browser. The simplest system wide method on both iPhone and Android is private DNS, which blocks many ad servers before they ever reach your phone.

On Android, open Settings, then Network and internet, then Private DNS, and choose Private DNS provider hostname. Enter the address of a free ad blocking DNS service such as dns.adguard-dns.com. Save it, and most in app ads and trackers will stop loading. This setting applies to the whole phone, including apps, and it stays on until you change it.

On iPhone, private DNS is not a single toggle in Settings. Instead, install a DNS profile from a trusted provider, or use an app such as AdGuard for iOS, which sets up a local filter. Open the app, follow its setup prompts, and turn on its system wide protection.

If an app shows ads no matter what you do, check whether it offers a paid version without ads. Free apps that promise to block ads for you, especially ones from unknown developers, are worth avoiding, since some of them collect your data or show their own ads.

Step 3: stop ads on YouTube and social media

YouTube is where many people meet the most ads, and it is also where blocking is trickiest. On the free YouTube app, ads are built in and cannot be blocked by a browser extension. Your options are to watch YouTube in a browser with an ad blocker turned on, which works on both iPhone and Android, or to use YouTube Premium, which removes ads across the app and the website.

On social media apps such as Facebook, Instagram, and TikTok, ads appear as sponsored posts in your feed. You cannot block them entirely with a DNS filter, but you can reduce them and make them less personal. Open each app's settings and look for the ad preferences or ads section. Turn off ads personalization where the option exists, and hide or report ads that are misleading. On Facebook and Instagram, you can also use the Accounts Centre to review the interests advertisers have attached to your profile and remove the ones that do not fit you.

Step 4: clean up tracking so ads stay blocked

Blocking ads is only half the job. Advertisers rebuild your profile from tracking data, so clean that up too. On iPhone, open Settings, then Privacy and Security, then Tracking, and turn off Allow Apps to Request to Track. That single switch stops most apps from asking to follow you across other apps and websites.

On Android, open Settings, then Privacy, then Ads, and tap Delete advertising ID. In most recent versions of Android, this resets your advertising ID to zero, which means apps cannot use it to build a profile of you.

Step 5: use your router and check what changed

If you want ads blocked on every device in your home, including phones, tablets, and smart TVs, you can set ad blocking DNS on your home router. Log in to your router's admin page, find the DNS settings, and enter the address of an ad blocking DNS service. Every device on your Wi-Fi will then use it automatically, with no setup needed on each phone.

After a week of using these settings, check whether anything you rely on has stopped working. Some websites and apps refuse to load when they detect an ad blocker, and some banking or streaming apps behave oddly with private DNS turned on. If that happens, you can add the site or app to your blocker's allow list, or turn the DNS setting off temporarily. Blocking ads is meant to make your phone better, not to break the apps you need.

The goal is not to block every single ad on the internet. That is not realistic, and some sites depend on advertising to stay free. The goal is to take back control: fewer pop ups, less tracking, and no ads that try to trick you.

Frequently Asked Questions

Is it legal to block ads on my phone in Canada?

Yes. Using a browser extension, a content blocker, or private DNS to block ads on your own device is legal in Canada. You are choosing what your own phone loads and displays. Some websites may ask you to turn off your blocker to read their content, and you can decide whether to do that.

Why do I still see ads after turning on an ad blocker?

Some ads are served from the same servers as the content itself, which makes them hard to block without breaking the site. In app ads on YouTube and social media are also harder to remove, because they are built into the app. A combination of a browser blocker and private DNS catches most of them.

Will blocking ads break my apps or websites?

Occasionally, yes. Some sites refuse to load content until you turn off your blocker, and a few apps behave oddly with private DNS turned on. If something stops working, add that site or app to your blocker's allow list, or turn the DNS setting off for a moment.