"Ski Tracks". I think Schif said it's like $1.29 or something like that for Android.It's a cool app, it automatically lays all your runs and lift rides out on a map (which can be satellite image), inserts an icon on the map at the exact spot you took the picture, tracks vert and top speed amongst other things.
You can see how it adds the lift rides in, which like I said, the app does itself.
There is a margin of error in the vert statistics, looking back at my last day riding the average vert for the quad was 570 feet. The tracking of your path is scary accurate though, you can usually tell what side of the trail you went down and everything.
I may have done the Cannonball run from mid-mountain (starting at the base of the bunny hill) rather than the top of the lift, I don't remember.