Can I use RADICORE to develop commercial web applications?
Yes. You do not pay to use RADICORE to develop an application, but as the runtime elements of RADICORE will be required to deploy that application then any recipient of that application will require a license for every server on which that application is deployed. Simply include the cost of any license(s) in what you charge your customer(s). When you consider that by using RADICORE you will be saving yourself months and months of effort it should easily be worth what you would charge for a few days of your time.