17 Alternatives To SAGA GIS
GRASS GIS is a free Geographic Information System (GIS) software used for geospatial data management and analysis, image processing, graphics/maps production, spatial modeling, and visualization.
Spreadsheets have never made you look so good. Sure, you can buy an expensive business intelligence mapping software that requires a Ph. D to use. Or you can use Mapline to create a map from Excel spreadsheet data in seconds.