Difference between WordPress and Webflow

In regards to blogging, what is the difference between WordPress and Webflow? According to Wikipedia, WordPress is a content mangement system (CMS) and Webflow is a "software as a service for website building and hosting". Webflow gets compared to Squarespace, Weebly, Wix, and Webydo — but not WordPress. Is it that Webflow and friends are a higher level abstraction that may include a CMS?