Skiing Apps

What are your preferred skiing apps?  I'd like something that tracks vertical skied, mileage, maybe speed etc.  Preferably free, works in areas with poor reception, isn't specific to a particular mountain/resort and doesn't drain the battery.  I posted this in a FB group and before it was taken down someone recommended Ski Tracks which has a $0.99 and free option.  Thanks and happy skiing!

Trace app is free and works great.

Trace snow

Strava for me. Tracks running and biking to. Free

Trace Snow.

Fatmap.

Thanks.  Going to try out Trace Snow tomorrow at Magic!