This is a very good app for tracking you ski routes. This is my third season i used the pro app and still very good. The apple watch app doesn’t take much battery.
Only problem was with the apple watch app. 2 days weren’t saved to my phone, i contacted the support and they reacted very nice and helped me with recovering. They also said that in the next update this will be fixed(because more people had this problem). Only bad thing about this, after the lunch break the data is gone. Only a halve day back, but i don’t mind.
Before i used the pro app i used the lite app 2 years and the apps have never had something bad.