[pct-l] Smart Phone Apps

[Eddy]

I just got a smart phone and have thought about carrying it on my hikes now. Normally I don't but since I have misplaced my camera I will be using it as my camera now.  My phone is a Samsung Galaxy 3III  
 
I’m wondering what other apps would be useful to install on the phone?  Any thoughts?
 
Oh BTW I do not want to turn this into a discussion about whether electronics are good or bad on the trail.
 
Just the Apps ma'am, just the Apps 
 
thanks
 
Eddy

Conquest: It is not the Mountain we conquer but Ourselves