GeoPro has developed a gravity and magnetic modeling tool that can handle models of any complexity. It is based on a full 3-D grid approach with the model space being discriminated by rectangular prisms of constant size.
Geological or geophysical information can easily be incorporated into the model. The example below shows the comparism between observed(left) and calculated(right) gravity fields.
GeoPro offers acquisition and interpretation of marine, land and airborn gravity and magnetic data.