Top 8 Reference Software apps that are similar to G*Power for Windows

The Geometer's Sketchpad
Trial versionTeach and visualize the mathematics problem.
WindowsMobotsim
Trial versionSimulate differential drive robots.
WindowsMendeley Desktop
FreeMendeley Desktop - For academic researchers
Windows
PTC Mathcad Express
FreeA whiteboard for your complex engineering calculations
Windows
WarpPLS
Trial versionIdentify nonlinear relationships and estimate path coefficients accordingly.
Windows
Google Earth Pro
FreePowerful free tool for global exploration
Windows
ChemSketch Freeware
FreeFree, comprehensive chemical modeling tool
WindowsLogger Pro
DemoEmpowering classroom data analysis
Windows