First: I created WinTechJobs as a cheaper alternative app to Jobscan.
As an additional difference it enables more accurate resume analysis.
If you've ever used Jobscan before, you might know that the analysis of hard skills and soft skills in particular is terrible. Jobscan will list things like "cad" (Canadian dollar) as a hard skills item. They're probably just extracting words that seem relevant from the job description. However, this makes resume scoring completely unreliable.
WinTechJobs doesn't have these issues.