K2 Trial web-based application or software for downlod

Greetings,

for research purposes I want to try the k2 trial version, but before i register myself for it, I would like to know,

if the trial version is a web-based application that I can execute in a browser, 

or if it is a download, so that I have to instal the software on my PC or Laptop.

Or am I completly wrong and it needs a lot of other extra things like servers, so I can run it?

I havn't found a solution in the rest of the forum.

Sincerly,

Fabian