Here are just a few screenshots
It's not intended to be used on mobile.
Well, not on phones. People do use it reasonably well on tablets, I think.
On my wish list for someday is to think about a Catrobat-like (or Catrobat-based) UI for Snap! on phones.
It works fine for me on iPad/tablet, only the Apple on-screen keyboard can make it weird and some UI positioning is weird but that’s it. It works fine on iPad besides those 2 things.