The main difference between ClickFunnels and Outplay is in the level of complexity. ClickFunnels is incredibly powerful, yet it lacks the full customization and flexibility that Outplay provides. Outplay allows users to create full-scale websites with completely customized page designs and marketing automation campaigns, while ClickFunnels is focused on helping users create simple funnels using pre-defined templates. Outplay offers a more robust featureset, including features that are beyond the scope of ClickFunnels functionality. However, ClickFunnels is a great choice for those who need a fast and easy way to quickly set up sales funnels for their business.