what apps did you try? I use RIF (reddit is fun) and it's much better than the official app. The UI is much cleaner (looks like a proper mobile version of the 'old' reddit) with much better information density.
Overall what I disliked was that they didn't have the same polish in the navigation.
On the official app I feel like everything that is going from a list of thread to the comments, to collapsing a comment, to going back to the subreddit, etc. is super natural and polished and I didn't feel the same on the others.