Indeed, sad to say that was my impression too. I asked a few simple questions prior to buying a license and never got any reply, so I dropped this as a viable solution. YMMV! The nectarjs thing unfortunately doesn't look any better for now : "Funding for this project was canceled by the project creator about 18 hours ago."...
I am planning to use encloseJS for one of project, but unfortunately my anti virus pops up a virus threat, any help on this pls.
Also if I succeed in this POC, I would buy the EvolveJS licence for our company.