Thinking about a beach trip? Chances are you'll see people with metal detectors scouring the sand. If you want to find some treasure of your own, try the Metal Detector app.
Metal Detector is free on the Apple Store and turns your iPhone or iPad into just that. The app allows you to change the sensitivity. As you'd expect, as you hover over metal, the meter shoots into the red and it starts beeping.
I tried it out, it's not perfect, but it's a fun app. The beeping may get on your nerves. If all else fails, it make a fun app for kids.
Metal Detector is only available for Apple devices.