I think that memmy is showing a lot of progress, but I’ve been getting better search results from mlem, so I’m using both right now. I think a couple more might be out for iOS right now (just grabbed liftoff).
I’m another one of those Alien Blue -> Apollo -> gtfo users. I never would have even signed up for reddit if it wasn’t for third party apps because their UI was terrible in every iteration and implementation, and I was a regular user for over ten years.