I use the old TOPO software at home to plan trips and print maps. That is it.

I stupidly left my camera on a rock, in the middle of a huge gnarly bushwhack this summer, never found it. Since then I have been using my I-phone for photos until I figure out what new camera I will buy. I put it in airplane mode AND turn it off unless taking photos. If I know I have enough power left (usually last few days of trip) I will leave it on, but in airplane mode. It tracks my miles/steps, but I do not think it is all that accurate. Evidently, so I was told, the I-phone can use satellites for this function. Last week I had it on all day, and where I had measured 9.5 miles on the map, the phone said I did 11.5 miles. I suspect the truth was somewhere in between.