Wipr blocks all ads, trackers, cryptocurrency miners, EU cookie and GDPR notices, and other annoyances, so you can focus on the content that matters to you while using Safari. • Time, Data, and Battery Saver Web pages load a lot faster with Wipr, and much less needs to be downloaded. Your...
apps.apple.com
Yep... on the App Store.
They also have an iOS app that is a seperate purchase.
I do occasionally get those "we see you are using an adblocker" popups and I don't know of any way around those any more. Same with YT ads.... they are served from the same YT domain, so indistinguishable from the real video you want (so I have read).
I like Wipr because you can set it so you manually refresh the block list, and by doing that there is no app running in the background. It can optionally run in the background and auto update if you prefer.