I was the only reddit app I found that really worked with new comments.

what I mean with that is when you read a thread, then come back 5h later it would highlight all the new comments so you would not have to reread all the ones you already read the first time.

such a great feature (maybe others have it too, but from the many I tried non had it in that way)

also great ux with swiping allowed for super efficient navigation