There seems to be many lemmy apps available. I already tried few apps though I don’t even know where to find most of the others. Instead of trying every single one of them I’d like to know if there’s anything similar to RIF. Here’s some key features of RIF:

• Simple. Mostly text and no complicated UI elements.
• Information density. I can see a list of eight posts on my screen. Again, it’s just text with no UI decorations.
• One handed browsing. As I hold my phone with right hand I can easily access both linked url and comments of a post with my right thumb (buttons on right side of the screen).
• Comment navigation. This is not as important but in larger threads it’s useful to navigate between parent comments.

If there’s nothing similar available, maybe these could be added to an existing implementation. I could even try to help as I am programmer, though I don’t know much about mobile app development.