I'd like to know whether Chenguang HVAC Software CGTools is freeware or not.
Thanks & best regards,
It's impossible to say what the license type of this application is since there is no website to acquire the information from. I've searched on Google and various websites, and although a part of it appears on a few websites, there is nothing specific to indicate the correct license type.
I also believe this is a discontinued app given the fact that no other information was found.
I recommend choosing other product from the same category: http://www.elitesoft.com/web/hvacr/elite_htools_info.html