Are you talking about something you'd put on the device to learn in advance of being in a survival situation, or something you'd plan to use DURING a survival incident? If it's the latter I'd recommend a book, not an electronic app. I have both the Army Survival Guide and the SAS Handbook in book form and like them both. They would be great for reading/learning IN ADVANCE of a survival situation on your device. DURING a survival situation, I would first use the device try to make an emergency phone call or send a text message/email, then to get my coordinates (GPS) and write those down for later use, and then remove the battery and short it out to generate sparks to light a fire. Angry Birds, while fun, is mostly useless in a survival situation.