Samsung Phone Suddenly Showing Ads? Check These 5 Settings Before Installing Anything
You paid full price for a Galaxy phone. Full price. And somehow you're still getting popups, banner ads inside your own call screen, and "special offers" notifications you never asked for. Before you download some sketchy third-party ad blocker, stop — because in most cases, the ads aren't coming from outside your phone. They're coming from settings Samsung already switched on for you.
Here's the thing nobody tells you when you buy a Galaxy device: a meaningful chunk of what feels like "ads on my phone" isn't malware, isn't a virus, and isn't some shady app you installed by accident. It's Samsung's own advertising system, quietly running in the background through One UI, dressed up as helpful notifications and personalized suggestions.
The good news is that almost all of it can be turned off. You just need to know where to look, because Samsung has scattered these controls across five different menus instead of putting them in one obvious place.
Let's go through them one at a time, starting with the setting causing the most damage.
1. Customization Service — The One Setting Doing the Most Damage
This is the big one, and almost nobody knows it exists. Customization Service is Samsung's built-in data profiling tool. It activates automatically the moment you create a Samsung account, with no separate prompt asking if that's okay. Once it's on, it can access a genuinely alarming range of personal data — your precise location history, your full browsing and search activity, your calendar appointments, your contact list, your call logs, which apps you have installed, and even metadata from your photos showing exactly when and where each one was taken.
Samsung uses all of that to build an advertising profile on you, and based on Samsung's own privacy documentation, portions of that profile can be shared with third-party vendors. That's the real engine behind a lot of the "why does my phone suddenly know what I want to buy" feeling. Here's how to shut it down. Go to Settings, then Samsung account, then Privacy, and look for Customization Service. Turn it off. Some devices label this slightly differently, so if you don't see it immediately, check under Security and Privacy instead.
One important habit to build here: Samsung software updates have a track record of quietly re-enabling settings you already turned off. Recheck this one specifically after every major One UI update, because it's one of the most common settings to silently revert.
2. Galaxy Store Notification Categories
The Galaxy Store is where most of the coupon and "event" spam actually originates, and Samsung defaults it to sending you all of it during initial setup. Open Settings, then Apps, then find Galaxy Store, then tap Notifications. Tap Notification Categories, and you'll see a breakdown that typically includes things like Coupons, Events, Recommendations, and Benefits, sitting right alongside genuinely useful categories like app updates.
Turn off anything promotional. You can leave update-related notifications on if you actually want to know when your apps need updating, but there's no reason to keep coupons and event banners flowing into your notification panel.
While you're in that same Galaxy Store settings menu, there's a second toggle worth hunting down: Get news and special offers, usually tucked under your Samsung account settings inside the store app itself. Turn that off too. It's a separate marketing channel from the notification categories, and Samsung doesn't make that obvious.
3. Block Apps With Excessive Ads (Device Care)
This is a newer feature, and it's one of the more useful things Samsung has actually added specifically to fight ad spam, rather than generate it. Go to Settings, then Device Care, tap the three dots in the corner, then Settings, then look for Block Apps With Excessive Ads.
When it's enabled, Samsung automatically puts apps that repeatedly send promotional notifications into a restricted "deep sleep" state, the same background restriction normally reserved for apps you barely use. There are two modes worth knowing about.
Basic mode blocks apps that Samsung has already identified and flagged as frequent ad-spammers. Intelligent mode goes further, actively analyzing the notifications your apps send to detect ad behavior in real time, rather than just relying on a preset list.
One caveat worth knowing upfront: once an app gets flagged, all of its notifications go quiet, not just the promotional ones. If there's an app where you actually want to keep receiving legitimate alerts, keep an eye on whether this feature accidentally silences something you needed.
4. Google Ads Personalization
This one isn't Samsung-specific, but it stacks directly on top of everything above, and it's worth doing in the same sitting since you're already deep in settings. Go to Settings, then Google, then Ads. From here you've got two real options.
You can enable Opt Out of Ads Personalization, which stops apps and services from tailoring ads based on your activity, or you can go a step further and select Delete Advertising ID, which limits how thoroughly Google can build a profile tied to your device at all.
Neither of these will make ads vanish completely across every app on your phone, since plenty of apps run their own separate ad networks entirely outside Google's system. But it meaningfully cuts down how personalized — and honestly how creepy — the ads you do see end up being.
5. Samsung News and Lock Screen Widgets
Swipe left from your home screen and there's a decent chance you land on Samsung News, formerly called Samsung Free — a panel packed with articles, and often, sponsored content mixed in among them. If you never use this panel, you can disable it entirely. Long-press on an empty area of your home screen, tap the settings gear that appears, and look for the option to turn off swiping to the panel on the left.
That single toggle removes an entire surface Samsung uses to serve you sponsored articles disguised as news content. It's also worth checking your lock screen widgets while you're there. Some Galaxy devices ship with promotional widgets pre-installed on the lock screen or in the widget panel, and they're easy to remove the same way you'd remove any other widget — press and hold, then select remove.
What If You've Checked All Five and the Ads Are Still There?
If you've gone through everything above and you're still getting aggressive popups — the kind that interrupt what you're doing rather than sitting quietly in a notification — that's genuinely a different problem, and it's worth treating it that way. At that point, the more likely explanation is a specific app you installed, not a Samsung system setting.
The fastest way to confirm this is booting your phone into Safe Mode, which temporarily disables every third-party app you've installed. If the popups disappear in Safe Mode, you've confirmed it's an app, not the system, and you can go through your recently installed apps one at a time to find the culprit and uninstall it.
Weather apps, calendar apps, and third-party caller ID tools are unusually common offenders here, according to plenty of frustrated Galaxy owners who've tracked down their own popup sources. If you installed something free from outside the Play Store recently, or granted an app unusual permissions during setup, that's the first place to look.
The Bottom Line
Most of the ad clutter on a Samsung phone isn't a sign that something's broken. It's a sign that Samsung's defaults are built around advertising revenue, not around giving you the cleanest possible experience out of the box.
Run through these five settings once, and set a reminder to double-check Customization Service specifically after your next major software update. It takes about ten minutes total, and for most people, it's the difference between a phone that feels like it's constantly selling you something and one that just quietly does what you bought it to do.
Also read: Samsung Messages Is Going Away — Galaxy Users Should Check Their Phones Now
