What you've listed under appearance could easily fit under "distinguishing features/characteristics" to me. Especially if you are working with a canon character, I think any tics, clothing preferences, stature, etc is probably already well established. I can see, possibly, the need for it with original characters, if it's out of the norm and/or enough of something that someone could recognize it and comment on it.
The only times I've ever found the appearance section to be useful is when I had an original character with tattoo's and/or piercings that I needed to refer back to. I think that's happened to me twice, otherwise I feel like it's a fluff section and I'm just rattling off basic stats on my character.
If you're going to include an "appearance/physical description" section, it's probably better off in the bio, rather than the app. Unless it's integral to the character, as a mod and as a player, I don't want to know every single minute detail about a character. But that's me.