There are situations in which you may still see ads even though you blocked all the advertising trackers. It may be because:
We detected a tracker that has multiple uses and blocking it would be detrimental to your Internet experience so we decided to let it pass (that action is called whitelisting). That tracker for example may be essential to display a page properly or perform online shopping actions so blocking it would not be worth the inconvenience.
The service provider who provided you with Privowny App decided to make some exceptions.
Our Tracker Manager missed a tracker. New trackers are being created all the time, we’ve indexed thousands of them and are constantly on the lookout for new ones but sometimes they slip through. We’ll eventually catch them all though.