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Wipr 2

It’s a one time paid app that works for both Mac and iOS

I've also been happy with Wipr on both those OSes.

AdGuard has been the best overall in my experience. uBlock Origin has recently released for Safari, but it seems like a work in progress.

On iOS, Brave’s built-in blocker seems to work for me. Not safari, but I believe it’s using their WebKit engine.