From the slide out menu on the left side of the screen, you can quickly access all the app's categories. Desert, tropical, cold, sea, etc. You can find tips and guidelines for surviving any situation. You can also find categories about how to build tools, recognize dangerous animals, poisonous plants, or even camouflage yourself.
In the appendix in Offline Survival Manual, you can see photos of poisonous snakes, illustrated guides about how to make all sorts of knots, photos of medicinal and poisonous plants, etc. And all this in an app that takes up less than 9 megabytes.
Offline Survival Manual is one of those apps that you should always have installed on your smartphone, just in case. Ideally, you'll never have to use it, but considering how little space it takes up, you just need to have it installed because you never know what could happen.
Requires Android 2.3.3 or higher