Talk:List of concept- and mind-mapping software/Archives/2014

Difference between non-paid and Open-source?
Usually I would expect, that non-paid is free to use but you don't get neither source code nor the right to modify the software. But how is that possible with GPL-based software? Do I have a lack of understanding differences between GPL/v2/v3 ...? -- 178.239.74.16 (talk) 09:20, 5 May 2014 (UTC)