[scarface74]

Not if people install a content blocker in Safari. Especially since the same blockers also work in the newer WKWebView that's embedded into apps.

[eridius]

Nitpick: The blockers work in SFSafariBrowserViewController, but they're not installed in WKWebView (you can of course install your own blockers into your WKWebView, but you don't get the ones from the app store; this makes sense because otherwise there's too much potential for screwing with webviews that show content curated by the containing app).

[goalieca]

Highly recommend installing Firefox focus. It will integrate its blockers into safari.