With the boom in Android and iPhone devices, there are tons of "digital dowsing" applications available.
We personally are partial to the applications available for the iPhone, iTouch and iPad. Some of the applications we have had positive results with are:
We are always willing to try out and experiment with new apps, but will not endorse anything for use until we have attempted to debunk it. These applications are listed as "entertainment only", so it necessary to be careful before using and validating these applications for data collection.