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Mobile apps show ads and use trackers, for instance.

ProtonVPN blocks ads and trackers, it's my solution and reasonably affordable.

It saves me bandwidth to not serve ads to family members and other guests on my Wi-Fi.

Plenty of "smart" appliances phone home unnecessarily.

That isn’t adblocking, though

Well, it's blocking the data being sold on to advertising companies.

Security works best in layers

Even with ublock the network wide blockers catch stuff. Ublock is good but not perfect

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