CMap is a program used for entry and log plotting of drill hole data. It is specifically designed to simplify the logging and increase the quality of the entered data.
CMap is built with a graphical interface that reduces most data entry to  point-and-click mouse operations and user-assigned function keys. CMap instantly creates log graphs displaying grades, lithology etc. The visualization is fully user configurable.
GeoCad is a program for graphical presentation and management of drill hole data. The drill holes are drawn according to the drilling path on true coordinates in 3D space. If deviation measurements exist these are taken into account. GeoCad uses ODBC to connect to the drill hole database, which means that a number of database formats can be used. There are several options to constrain the data to be displayed. A number of different presentation methods can be used,  all configurable in order to give emphasis to important features.