Update- 2022: worse! It still logs me out, gps vertical is ridiculously off (80k in a half day?!) when I "track my day", and app just stops working sometimes. Other days lifts are wrong it says I got almost no vertical for a while day. Terrible app unfortunately. Used to be much better with useful info 2020: 3 for functionality- I like the new content, but overall 2 stars because it keeps logging me out and I have to freeze my fingers to log back in. Lift line times are frequently wrong