I just stumbled upon an app for the Android software called “Metal Detector” and just had to tell you guys about it. Although the useful applications for it are pretty limited, it is an interesting novelty and maybe a treasure hunter somewhere can find a practical use. Basically, it uses the magnetic components available in the Android compass to detect electromagnet fields and ferrous metals. You won’t be able to detect non-ferrous materials such as aluminum and even for those materials you CAN detect, it only works from about 1″ away at the maximum. Watch this video to get a better idea of the Android Metal Detector app.