TheMonsterOfTheDeep wrote:

Blaze349 wrote:

But if I make a commercial app doesn't that mean I have to let everyone see the source code (not saying that is a bad thing)?

If you share it under the GPL, then yes, and you also have to allow anybody to redistribute your app or modified versions (This is, as it were, the main reason I sort of think the GPL is not necessarily suitable for commercial applications, but that's just my personal opinion).

However, Qt is licensed under the LGPL, which does not require your app to also be licensed under the LGPL.

__init__ wrote:

It does require the part originally licensed under the LGPL to be re-licensed under the LGPL, however.

https://stackoverflow.com/questions/1114045/gpl-and-lgpl-open-source-licensing-restrictions