It's not a "clone", just a different choice. It's geared towards prepress work whereas Inkscape is more of a general purpose vector application. It was made by people who work in a print shop so some of the more technical print aspects are probably closer to industry standards.. or at least that seems to be the goal.
I haven't used it for print work personally, just basic vector stuff. I found it while searching for Inkscape alternatives because Inkscape was giving me some issues
They have a brief description of its history and whatnot at the bottom of this page
Hi! Which distro are you using? I suppose uniconvertor got removed from your repository because it depends on python2, which has been deprecated.
I looked around a bit, and it seems like uniconvertor is still alive, with the last commit being from March 5. Also, if you don't feel like installing it from sources, installable packages seem to exist for Debian and derivatives, RPM distros, Arch, and MS Windows. Maybe it's worth a try?
check out in no particular order:
Here is <em>sK1</em> - it is free & open-source vector editor with CMYK/spot colors support, mostly CorelDraw/Adobe Illustrator alternative.
Get latest 'nightly' binary here:
AMA about sK1 😉