[mmatants]

This is a bit off-topic, but since you posted here - the "hall" logo in header could use tighter kerning between the "a" and the first "l".

Also, I personally found the landing page pretty useful in terms of explaining the core user stories (group chat, 1v1, file sharing), so kudos from me.

[ronadams]

Wow, thanks mmatants. I like your eye for detail re: our logo. I'd love to hear more about your feelings about the app itself. (I'm CTO of Hall btw.) Thanks for checking it out!