What is the use case? I can't imagine anything besides getting a real time view on the frontpage or likes of my own comments that a monthly static data dump wouldn't solve.
E.g. I use Hackers [1][2] because it is much easier to read stories on mobile and supports dark mode. Unfortunately, it doesn't support commenting or downvoting (yet?)
[1] https://apps.apple.com/us/app/hackers-for-hacker-news/id6035... [2] https://github.com/weiran/Hackers
https://apps.apple.com/ca/app/hack-for-hacker-news-developer...