Metal Sniffer: Metal Detector - now Is the time to become a treasure hunter and start looking for metals in the ground! With this app, you can turn your smartphone into a real metal detector. To do this you need only a couple of things, this app and your smartphone supports a compass function, to display the change of electromagnetic waves. And when the sensor will vibrate, it means that somewhere nearby there is metal, and you can safely grab a shovel and dig! You can test this app by throwing a piece of metal on the ground, and wiggle your over it your device.