Yattee is great if you don’t care about logging in.
If you do, there are still ways to block the ads by using an ad blocker for Safari or even using a different browser such as avast, opera or brave. You may need to tweak some settings, so it’s not guaranteed to be a plug and play experience. Even if a browser works with iOS, it might not work in iPadOS, so be prepared to try lots of different things.