I'm a freelance developer working at an enterprise SharePoint 2013 on prem environment. At the moment, i'm analyzing the Workflow options. I need 1 workflow on multiple locations in the same Web App and no forms.

I see the new Nintex business model on the website with a starterskit containing 5 workflows. Can I reuse this 5 workflows (so 1 workflow on multiple locations in the same Web App) or do the client company has to pay each instance?