The DNN platform is free (open-source), DNN Evoq Basic starts at $2,999 per year. DNN Evoq Content (addition of Liquid Content) starts at $7,999 per year. DNN Evoq Engage (includes Social, publishing solutions) starts at $19,999 per year. There is a features matrix letting you know what features are included in each version on DNN’s site. DNN is a software application within the DNN Prime library. This library contains other software applications, similar to Microsoft’s MSDN library. Also like the MSDN licensing, depending on the level of Support you pick with your license, you gain access to 1 (Standard Support), 3 (Gold Support) or Unlimited (Platinum Support) number of any of the applications within the Prime library. For a complete and updated list, visit the DNN site Prime page.