When comparing sK1 vs Affinity Publisher, the Slant community recommends Affinity Publisher for most people. In the question“What are the best desktop publishing softwares?” Affinity Publisher is ranked 1st while sK1 is ranked 6th.
Ranked in these QuestionsQuestion Ranking
Pro Corel Draw compatible
sK1 tries to look and feel like Corel Draw, it has also an excellent *.cdr importer.
Its written in the cross-platform WxWidgets toolkit.
Released under the GNU Lesser General Public License.
Pro CMYK colorspace support
CMYK support is one of its main features.
Pro Under GNU LGPL
So you don't have to fear the harsh copyleft of the GNU GPL license.
Pro One-off reasonable price, with no upgrades or monthly subs
Pro Very comprehensive set of features
Pro Has become sufficiently popular over the past year that there is an excellent knowledge base
You can quickly find solutions, tutorials, etc. online when you need help. Contrast this to Scribus, which despite its rich feature set, is often unintuitive and awkward to use, and help from other users sometimes difficult to find.
Pro Lots of Resources to Learn
Serif's forums, videos and other sites offer good resources to learn this tool, which has a very intuitive interface.
Pro Most intuitive interface
Con No EPub options (yet?)
Con No Linux version available
Unfortunately, there is no Linux version available in 2021, despite of numerous requests of the users.