YUANQUAN LI

Free
3D visualization and modeling package for Mac used for terrain modeling, contour mapping, 3D mapping, and more.
Free
This gis map software has an elegant design and supports vector and raster layers.
Free
GIS software for viewing, editing and rendering shape files, USGS DEM files and feature layers (points, lines, and polygons).
Free
This app helps users create professional charts with 6 themes & 5 plot types, including scatter & bar charts with various options.