Thanks! Right now it's a project I'm starting as part of a course I'm in for school, but eventually if I can, I'd love to find a way to develop it.
I don't think I would go with a subscription model, because I think there's a lot of subscription burnout happening - I know I personally pay for Netflix, and iTunes and I would hesitate before adding yet another recurring fee to my budget.
I agree it would have to be priced well - $5.00 or less, nowhere near 20 to 30 bucks.
I've considered the aspect of the adult population in terms of skewing the results, but I'd be weary of broadening my scope to all US figure skaters - I think depending on the level and age of the skater, the needs would be REALLY different than the mid-level, but very passionate adult. Kids are also less likely to have a phone of their own, and stick with it.
So I think target demographic at this stage would really be adult figure skaters - but I think if it's core features are very user friendly and encompass enough of what any skater, at any level would need to track/measure practices - it could work for a variety of skaters and coaches (I do love the idea of coach/skater collaboration, I think that angle needs research too)