During a session, I often need to pick and and put down my smartphone running Calistree on a flat surface. If you're not very deliberate, it can flip from portrait to landscape, which doesn't look so good, imho: very inefficient use of space (see screenshot). Correct me if I'm wrong, but I'd go as far and say the app isn't designed to be used in landscape mode.

It's a minor inconvenience thing, I know, but would you consider improving this aspect of the app?