(Free) Prepper Survival

I was just quickly browsing through the Android Market and thought I would look up some apps that might be of use to a prepper or survivalist. I found some cool apps and free ebooks that could come in handy. Such as:

Daily Survival Tip
https://market.android.com/details?id=com.mentormate.willowHavenOutdoor&feature=search_result

U.S Army Survival Guide
https://market.android.com/details?id=com.androidtrainer.survive&feature=search_result

MOUT