Qt Licenses



  • Hello !

    I'm using Qt5.6 and I would like to create a commercial application.
    I dynamically linked with Qt and I do not share my source code.
    I have read that I can use Qt using a LGPL license, is it true ?

    Thank you !


  • Qt Champions 2017

    Hi and welcome
    Yes, most of us use Qt with dynamic linking to satisfy the LGPL
    so as far as I know, this should be fine.
    Disclaimer: Im not a lawyer
    This is for Widget Qt application.



  • Thank you mrjj !
    So the commercial license is necessary just for static link ?


  • Qt Champions 2017

    Well also for mobile apps and publish to app stores and other cases.
    It also give direct support and pro help if needed.
    So there are many benefit to being a a Pro user.

    But if you dynamic link your desktop app, it should be fine using the open source.



  • Thank you very much


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