Hi,
Unfortunately Kickstart is no longer free. In its infancy there was a free version offered with new instruments, but that has not been the case for a couple years now. There is a full programmers manual available on our website that steps through all the available methods of programmatic control of the instrument through individual SCPI or TSP commands, but if you are looking for a plug and play control software then purchasing a Kickstart License is the only option. Depending on the intended use it is likely that you would only have to purchase a license for a specific Kickstart App as opposed to buying access to the entire suite. Kickstart does also come with a 30 free trial with access to all of the apps so that you can decide which best fits your need and if it is worth the investment for you.