iPhones can run DNS blockers locally[1], and Apple has a good API for privacy-preserving content blocking[2].
[1] https://apps.apple.com/ca/app/dnscloak-secure-dns-client/id1...
[2] https://developer.apple.com/documentation/safariservices/cre...
Sure, but that's not (or equivalent to) AdBlock Plus, which is what I was replying to.
Specifically, iPhones cannot do in-browser content or domain blocking if the browser is not Safari.
1) Run once, use everywhere. (Including devices without a browser, like an Android/Apple/'smart' TV.)
2) iPhones.
3) Configure alongside rest of networking, not clicking buttons to manually sync within browsers of the same type.