KLone Licenses
KLone is Open Source, which means that the full sources and documentation are available to everyone.
KLone is dual-licensed. Both GPLv2 and KLone Commercial License are provided. The commercial license is needed in all cases where GPLv2 is not applicable.
GPL v2
This license is for those who develop (and possibly distribute) Free Software and want to use KLone to build their GPL product. GPL imposes that all code that is linked to any GPL'd object file must be released under GPL. This means that the patches applied to KLone source base (if any) and server embedded content (in the form of generated C files) must be provided on request as stated by GPL v2 license.
Commercial
For those whose cannot use GPL license in their product because of third party license restrictions, or those who prefer not to disclose the source code of their product, the KLone Commercial License can be used instead of GPL.
KLone Commercial License grants permission to distribute or embed binary-only versions of KLone-based applications allowing the development, distribution and sale of proprietary software.