DowsingApps is not an electronic dowsing rod.
DowsingApps is just a location logger developed with dowsers in mind.
With it you can record sequences of points (locations) marked with pins of three different colours (red, green or yellow).
This has been traditionally done by dowsers by marking the points on a map, to indicate the rod movements or interesting spots.
The use of this app on an iPhone simplifies this process considerably.
Once recorded, you can review the sequences of points directly on the phone, or transfer them to a personal computer and view/modify them using several standard applications.
To use it, start the App, specify a 'project', i.e. a name for the sequence of points.
The main screen of the app has three coloured buttons. Pressing the button will record a pin of the corresponding colour in the project.
The website for DowsingApps is http://www.DowsingApps.co.uk