What would you like to have at your Hacker News App

If you are doing it for fun, or to learn a new language or platform it can be a good platform to play with. I say that because it is simple overall, has constant changes being posted and is reasonably open.

But I'd have to agree with chmaynard that it isn't worth your time to build an app for any other purposes other than if you are wanting to learn or experiment. I have seen probably 5-6 different apps get created over the years (which I am sure is a small subset of what has happened). All these apps are always abandoned after a short time cause there is no real end benefit for someone to build and maintain an app for HN.

Just my 2 cents.

Great! I want to highlight the kinds of stories that I especially want to read. I imagine an implementation akin to highlighting for my favorite saved search terms.

For example, I want to highlight general topics (e.g. Rust, Elixir), specific phrases and words (e.g. ring buffers, concurrency parallelism), specific users (e.g. pg, patio11), etc.

So if there's ever a post about Rust, and ring buffers, and by Paul Graham, then I want to see it at the top of my news please.

Sorry to rain on your parade, but this idea is probably not worth pursuing. No client on any platform could possibly improve on the HN web browser UI. If you simply use the browser on your device of choice, you will have access to all the built-in HN features. There is nothing useful that you can add by developing your own client. Their API simply won't support it.

A better way to search through all the submissions and comments one has saved or upvoted. If you have time, do some intelligent tagging so one can search by topic.