On Wed, 14 Nov 2012 05:56:23 -0800 (PST), whisky-dave wrote:

I was somewhat surprised to find a metal detector app...

Does it work, well it's andriod ;-)

The one I downloaded does, at least for magnetic materials.

As I thought you needed an externalm coil.

Depends if your droid has the magnetic sensor or not.

--
Cheers
Dave.