There are some great apps here for the outdoors including night vision camera' Android Phone Apps For the Outdoors | Emergency Outdoors Blog
I use the free version of "radar Now" daily. it shows incoming weather by zipcode, and live sweep radar. hit forcast, and it give hour by hour temp forecast. and conditions. No glitches I have run into. works well (as long as you have cell signal) and can be upgraded for a fee. useful. I also have one not listed. "U.S. Army Survival Guide" The medical section alone is worth down loading this one. Free. get it.