Can i sell product under license of GPL? [closed]

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I have some text data that is under the license terms of GPL. I have used this text data and created a iOS product. I only used text data.

Can I sell my product for a fee?

Thanks in advance.

Answer 1

Yes you can...

Except for one special situation, the GNU General Public License (GNU GPL) has no requirements about how much you can charge for distributing a copy of free software. You can charge nothing, a penny, a dollar, or a billion dollars. It's up to you, and the marketplace, so don't complain to us if nobody wants to pay a billion dollars for a copy.

The one exception is in the case where binaries are distributed without the corresponding complete source code. Those who do this are required by the GNU GPL to provide source code on subsequent request. Without a limit on the fee for the source code, they would be able set a fee too large for anyone to pay—such as a billion dollars—and thus pretend to release source code while in truth concealing it. So in this case we have to limit the fee for source in order to ensure the user's freedom. In ordinary situations, however, there is no such justification for limiting distribution fees, so we do not limit them.

Answer 2

You can sell GPL code, but you must make sure that all of your own code or linked (means everything on iOS) is licensed compatible with GPL. Means that all of your code is publicly available and you use nothing with incompatible licenses (e.g. : proprietary library)

If you target selling, better switch to BSD libraries (or link dynamically and use LGPL, which is not possible on iOS)