Is GPL License Legal?
With that said, dear TechRepublic reader, the short answer to your first question is: yes, you can legally sell software with a GPL license version 2 or 3 for whatever price you want to charge.
Can GPL license be used commercially?
The GPL v3 license permits users of the code to: Use the code for commercial purposes: Like GPL v2, GPL v3 imposes no conditions on the internal use of the software.
Open Source Software Licenses 101: GPL v3 - FOSSA
It earns its legal power from the use of copyright on software programs. Because a GPL work is copyrighted, a licensee has no right to redistribute it, not even in modified form (barring fair use), except under the terms of the license.
GNU General Public License - Wikipedia
SCO's Chris Sontag argues there are many reasons that the GNU General Public License is bad for the software industry. The General Public License is not good for the software industry for a variety of reasons.
No, the GPL is not good for the software industry | Network World
Is it legal to use GPL plugins?
Is it legal to sell and buy or use GPL themes or plugins? - Quora. Long answer: Yes. For something to be considered compatible under GPL, it must ensure that: Anyone can download and run the software.
Is it legal to sell and buy or use GPL themes or plugins? - Quora