Hey, I'm the developer of Clementine. This is just the initial release, we'll be adding features like account login and submission at a later date. We have a free version (with ads) available here: https://play.google.com/store/apps/details?id=com.elephants....
I love going through HN apps people have made, so here's what I think of it after using the free version a little bit.
- Comments could use some work. I feel like the comments are a bit too small. Maybe have it so you could swipe a parent comment and it'll fold the children? The layout in general looks a bit awkward when there is a long chain of comments, but I'm not sure how that could be approached differently.
- It'd be awesome to have it so swiping back from the comments page / link would take you to the main screen. It'd make browsing feel more smooth.
- Some sort of difference between read posts and unread posts would be a good idea, too.
- A night theme is pretty much a dealbreaker for me since I use my tablet most at night. That's just me being picky, though.
All in all, it feels pretty smooth, but feels more phone-oriented than tablet oriented due to everything being so small (comments, headers, etc.). Comments could use some work, but for an initial release it feels pretty solid. Great work!