I'm actually a fan of stats, but I think the problem with snowboard stats is it's hard to use them as a tool to measure progress like you can in other sports like cycling or running.
All those tools just measure irrelevant data like average altitude, how fast did I go etc. etc.
I'd be 100% for an app that could automatically figure out exactly which tricks I tried that day, which I landed, which I didn't, my average progression rate for landing new tricks etc. etc. but I imagine it's basically impossible to have something that's going to know exactly which trick I did and measure all those stats accurately.
Yeah, the numbers I look at are total distance for the day, and more importantly vertical meters. I've noticed this year that my ratio of vertical to distance is increasing (so on average I'm riding steeper stuff more often), and total distance is a fun one to keep you pushing.
When I used to use apps, I'd upload to Garmin Connects website (the raw data) and now I use a Garmin multi-sport watch. It's great because I can use it for everything. I do a little mountain biking and hiking in the summer. I did one triathlon last year and would like to do more this year, and it's a great tool for that.
I agree though that for boarding it's tough to track what you actually want to know. I did 35 km the other day at Fernie, and it felt like an amazing day, while I can do 50 km in a morning at Nakiska because I'm just groomer bombing all day.
The only way to know which actual tricks you're doing, air time, etc. Is to have accelerometers (sp?) on the tips of the board in various planes. This is how subs and rockets navigate (albeit with help from gps). With enough sensors you'd be able to tell cornering g-forces (at the centre of the board), rotation acceleration, speed, duration, etc and from that it could calculate how many rotations were completed in the air. It should be able to tell if you've done a normal grab or a suitcase or method based on the board rotating up 90 deg behind you.
There's no way around it though, you'd have to have sensors on the board to get good data.