I submitted Dance Log Book to Apple tonight. The app is basically the same thing as Martial Arts Log Book. The wording and color scheme are different, but functionally, very similar. I expect they will diverge in functionality over time as I get user feed back.
I hope this does well. Many years ago I was a ballet dancer. In my late teens, I auditioned for a few different schools. I had several offers and I ended up training in New York at the Joffery School around 1989-1991 on scholarship. I was doing well and being looked at by several professional companies, but I ran into a couple of physical and personal problems and had to retire early
Back when I was training, I kept a note book. I would write notes after each class. Sometime it would be a correction I was given that I wanted to remind myself of, sometimes I would record a cool combination from center, sometimes it was just a note about how I was feeling that day. Keeping a journal is very worthwhile. I have no doubt that it helped me.