With all the cool, fun things our mobile devices can do—from looking up movie info, to games, to social networking, to being amazing cameras—we can sometimes forget that these devices can be valuable and necessary tools. This new app, First Aid - American Red Cross, reminds us to use our phones for important, potentially life-saving purposes, as well as for fun.

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There's really no reason everyone shouldn't have this app installed. The app has information on how to deal with a variety of first aid scenarios, including burns, choking, bleeding, head injury, poison, and strokes, among many others. The app has information and guides, as well as quizzes and tests to see how much you've learned. An Emergency tab also has step-by-step instructions on what to do in case of an emergency, with links to call 911 where necessary.

Obviously an app, even one developed by the American Red Cross, is no substitute for professional medical attention. While everyone should download this app, it's best to read and do research before you need this information than to go scrambling to find it when an emergency actually happens. And, as always, if someone is experiencing a medical emergency and you don't know what to do call for help first and reach for this app later.

The app is completely free of charge and free of ads.