If you have iwatch 5, forget it.
If you enter a score, it runs a timeless “processing” cycle. You have to actually turn the Watch off to get it to stop. And there was no real tech-support. It makes you go to a weird app that if you don't have in order to complain. Don't waste your money. If I could've given it negative stars, that's what I would've given. So you, Casey Pollock, developer, just sent me a note that you had to rebuild and to update but there is no update. It still runs a deep cycle and disables the watch. This a paid app which does not run on 5+. Be warned.