These market places generally ignore this for two reasons.
1. Their deceitfulness will be revealed
2. They don't want other lowlife doing the same thing as themselves.
Go ask them for the source code for me will you

It should be prominent.
Moderator: Ras
Jon, I hope you didn't address those remarks to me, otherwise you wouldn't get my point: I didn't say it is illegal (I didn't even wonder). I didn't wonder either if this was compliant with GPL. I only said it was unethical. My remarks were based on morality only. Now, regarding legality, if it can be proven that those persons were trying to deceive their customers, then that would also be illegal in many countries. But that's another story.jdart wrote:Not to single anyone out, but I am amazed reading this thread how many have little understanding of GPL, or copyright.
If you own the software (have the copyright) and the software is released under GPL, you can re-license it under any license you want, compatible with GPL, or not. GPL prohibits other people from doing this, but not the owner. For example, mySQL can be obtained under a GPL license but you can also pay for a commercial license from the owner, Oracle, that exempts you from GPL requirements (http://mysql.com/about/legal/licensing/oem/#4).
So, if the App Store rules are incompatible with GPL that is not a problem, as long as the copyright owner is releasing it under the App Store agreement. If someone else does that, they are violating GPL and probably you can get Apple to take them down. although I don't have experience with Apple's policies. (I think going through Apple is a better route than trying to call them out directly for a GPL violation, because unless you want to hire a lawyer and sue, there is little you can actually do about that).
Btw., there is nothing in GPL itself that prohibits selling GPL software, even though it may be obtainable elsewhere for free, if you comply with the other GPL requirements. (As noted though App Store has other rules).
Jon, I am NOT at all discussing GPLjdart wrote:But I am saying it actually is illegal, to distribute a clone in the App Store.
Selling GPL software in some other fashion is kind of a theoretical discussion (I don't think this is common) but you might want to see http://www.gnu.org/philosophy/selling.html.
--Jon