Licensing



  • Can some one help me understand the licensing terms. Is commercial license mandatory for developing a desktop application with ALL of the below requirements:

    • The application will be distributed to others at a price

    • The source code of the application will be kept private. It won't be given to the buyers, or the community

    Or is LGPL is ok for this. Also where can I find a list of Qt libraries that I cannot include (link) in an LGPL license based application.

    If a commercial license is required, if a single developer is going to develop the app for multiple desktop platforms like Windows, and Linux, will two separate licenses be required. Or only one will suffice?



  • @qt-dev-1111 said in Licensing:

    Or is LGPL is ok for this

    It's ok if you also:

    • do not change Qt itself without sharing the changes back to the community
    • do not link to the static libraries

    Also where can I find a list of Qt libraries that I cannot include (link) in an LGPL license based application.

    here in the section "Add-ons available under GPLv3 license"

    If a commercial license is required, if a single developer is going to develop the app for multiple desktop platforms like Windows, and Linux, will two separate licenses be required. Or only one will suffice?

    from https://www.qt.io/faq/#_Toc_2_5

    You can install Qt and our development tools to as many computers as needed as long everyone using Qt has a valid commercial license.


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