Buggy and unreliable on iPhone 6plus, iOS 8
First of all, you have to give them your email/Facebook in order to use the app at all.
After a couple of hours of skiing it just stopped logging. No trace of my data. Later I got an email with part of my data. Tried another day and lost the entire days data despite reviewing it on screen at lunch.
Lots of better options that dont require you to exchange your personal info for an app that does t work.
Lugis2 about
Trace Snow - Ski + Snowboard Tracker, v3.4.4