Download the installer (usually a 1-2 GB file). Run the setup and select "Student License" when prompted. The installer includes the main KISSsoft interface, the shaft calculator, and the 3D preview generator.
A: Check your university's intellectual property policy. Generally, yes for academic design, but not for a project contracted by a real company. kisssoft student version
If you are a mechanical engineering student specializing in powertrains, robotics, or heavy machinery, do not graduate without spending at least 50 hours inside KISSsoft. Download the student version today, model a simple gear pair, and iterate until the safety factor reaches 1.5. That exercise will teach you more about mechanical design than a semester of lectures. Download the installer (usually a 1-2 GB file)