[Interest] Qt Creator licensing for companies with Qt Commercial developers

Andy asmaloney at gmail.com
Fri Mar 27 16:29:24 CET 2020

"This seems to become a longer thread than I envisioned, as apparently my
original response was not clear enough."

As I pointed out - it's because you're not answering the question that was
asked, and therefore confusing the issue.

"Is it still possible for the developers who don't use Qt libraries in any
way, use Qt Creator IDE for editing and debugging?"

The answer is yes.

Andy Maloney  //  https://asmaloney.com
twitter ~ @asmaloney <https://twitter.com/asmaloney>

On Fri, Mar 27, 2020 at 11:23 AM Tuukka Turunen <tuukka.turunen at qt.io>

> Hi,
> This seems to become a longer thread than I envisioned, as apparently my
> original response was not clear enough.
> In general, if there are any questions or concerns related to licensing,
> check the FAQ: https://www.qt.io/faq/
> If you are looking for advise on licensing, I recommend either to read the
> FAQ or consult a lawyer. While everyone here tries their best to give good
> advice, it is possible that some incorrect information or interpretation is
> presented (because licensing can be a difficult topic).
> Anyways, I'll now explain again the answer to the original question asked.
> The question was, as I understood it, "Is it allowed that people working in
> a project use commercially licensed Qt and some other persons in the same
> project who do not develop Qt use open-source licensed Qt tools?"
> Answer to this is: No, it is not allowed to mix commercial "Licensed
> Software" and the open-source versions provided by The Qt Company in the
> same project.
> This is a restriction coming from the commercial license agreement:
> https://www.qt.io/terms-conditions/
> The basic rule of thumb is: Don't mix. Use either only commercial or only
> open-source versions of items provided by The Qt Company.
> Yours,
>         Tuukka
> ´╗┐On 27.3.2020, 16.26, "Interest on behalf of Giuseppe D'Angelo via
> Interest" <interest-bounces at qt-project.org on behalf of
> interest at qt-project.org> wrote:
>     On 27/03/2020 15:03, Tomas Konir wrote:
>     >
>     > Sorry for possible misunderstanding, but i think, that original
> question
>     > was little different.
>     > Question was:
>     >
>     > There is company, where are two developer groups:
>     > Group1: Use QtCreator and works with QT libraries (and works with
> other
>     > code which not use QT libraries). All users have Commercial License.
>     > Group2: Would like to use QtCreator and not use QT libraries (they
>     > working only with QT unrelated code). The want use QtCreator only as
>     >
>     > Can both groups use QtCreator?
>     > I thought, that using QtCreator as IDE is not conditioned with
> having QT
>     > Commercial license.
>     The only difference that comes to mind is that the first group can use
>     Qt Creator under its commercial license, which may come with some
> extra
>     features (not exactly sure of which ones, at this particular point in
> time).
>     The second group can instead just use Qt Creator under its open source
>     license. The open source license of Qt Creator itself does NOT extend
> in
>     any way to the software you develop (cf. the GPL FAQ).
>     HTH,
>     --
>     Giuseppe D'Angelo | giuseppe.dangelo at kdab.com | Senior Software
> Engineer
>     KDAB (France) S.A.S., a KDAB Group company
>     Tel. France +33 (0)4 90 84 08 53, http://www.kdab.com
>     KDAB - The Qt, C++ and OpenGL Experts
> _______________________________________________
> Interest mailing list
> Interest at qt-project.org
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