[midoridensha]

>What are people using on their phones these days for ad blocking?

uBlock Origin of course, what else? Running on Firefox (Nightly).

>(iphone specifically)

If you want an iPhone, you shouldn't complain about ads. If you want to block ads, get an Android. If Apple wanted you to block ads, they'd build a good ad-blocker into their phone. They don't, and they forcibly prevent you from using a different browser and ad-blocker, so obviously they want you to view ads.