How to stop customized ads / How to turn off ads on your Samsung phone
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First thing's first, you'll want to opt-out of Samsung's customized ads and marketing program. This is something you likely agreed to without a second thought when setting up your phone, and thankfully, disabling it is fairly simple.
1. Open the Settings app on your Samsung phone.
2. Scroll down.
3. Tap Privacy.
4. Tap Customization Service.
5. Tap the toggle next to Customized ads and direct marketing so that it's turned off.
Once disabled, Samsung will no longer be able to use things like your location and texts to serve customized ads. While in-app advertisements won't be disabled entirely, it should limit the rate at which you see them.
It should also be noted that this is what the process looks like for Samsung phones running One UI 3.0 and above. Samsung used to have a Receive marketing information toggle under your Privacy settings in older One UI variants, but that's not available in the newer One UI 5 builds.
How to turn off marketing info in Samsung apps
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Another step you can take for limiting advertisements is by going through Samsung apps individually and disabling their own in-app marketing/promotional toggles. The process looks about the same for all Samsung apps with this option, with Samsung Pay shown below as an example.
1. Open a first-party Samsung app (in this example, Samsung Pay).
2. Tap the hamburger menu icon at the top-left of your screen.
3. Tap Settings.
4. Tap the toggle next to Marketing information to turn it off.
With this disabled, that specific Samsung app will no longer be able to send you "marketing notifications and emails." While it's certainly a tedious process going through and doing this for each individual Samsung app, it's worth taking a few minutes to do so if you want to disable these ads in as many different areas as possible.
