Can You Sell GPL 3 Software?
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.
4. Can you sell GPL software/code? Yes, the GPL license allows users to sell the original as well as the modified software. It may be confusing, but free software is referred to as free in terms of freedom and not in terms of price.
GPL License - Top 10 Questions Answered - Mend
GNU General Public License (GPL) is among the most popular open source licenses.
What is GNU General Public License (GNU GPL or GPL)? - TechTarget
The most oft-mentioned myth about free software -- aside from the fact that the "free" does not mean "gratis" -- is that the General Public License, the example of copyleft free software licenses, is a "viral" license. It is not, and please stop saying that it is.
The GPL is not viral - metastatic.org
Like the GPL v2, GPL 3 is a strong copyleft license, meaning that any copy or modification of the original code must also be released under the GPL v3. In other words, you can take the GPL 3'd code, add to it or make major changes, then distribute your version.
Open Source Software Licenses 101: GPL v3 - FOSSA