I’'m trying to understand what the difference is between the opensource free openfire and the openfire that costs money. thanks.
http://www.jivesoftware.com/products/openfire/resources/faq.jsp#licensing contains “The server is dual-licensed under the Open Source GPL license or a comercial software license agreement available from Jive Software (when purchasing the Openfire Enterprise Edition). Dual-licensing allows Openfire to be Open Source while also offering an alternative to organizations that prefer to not use the GPL licensing terms.”
Iff you don’'t like GPL licenses you may choose the other one and spend some peanuts for the same features.