A Professional License is best for an application with multiple environments. It allows you to use and further develop the Froala WYSIWYG HTML Editor on 10 (ten) Domains and all their subdomains (e.g.: example.com, a.example.com, b.example.com). The license is non-transferabble and can be used only in a product.
The Professional License includes the unminified source code and Technical Support.