I have not used any ad blockers on iOS since I do almost all browsing on Mac. On Mac I use Ghostery Lite ($free, content and tracker blocking) and StopTheMadness ($2, javascript modifier and privacy). Lately one site that I use, AyumiLove, has so many overlay ads (left side, bottom, right side) that it covers up all the content on my iPhone SE. So I went looking for an iOS ad blocker.

You can't sell pure ad blockers on the App Store. Everything has to be an app and all apps have to be somewhat functional standalone. So what I see is that ad blockers are apps that can function as web browsers and have an extension you can turn on in System Preferences > Safari > Content Blockers.

First I looked at Ghostery Privacy Browser but it doesn't have a Safari extension and I don't want to use a new browser. Similarly DuckDuckGo Privacy Browser is just a browser with no Safari Extension. And then there are a bunch of no-name ad blockers which I find hard to trust.

Eventually I found Firefox Focus which is published by Mozilla, is a standalone browser, and has a Safari extension. I installed it, turned it on, and so far Safari seems fine with a lot less ads. It doesn't have to be perfect and I do trust Mozilla so this is the best solution I've found.