Qt has both commercial and LGPL licenses. I think you can develop commercial applications with LGPL and not distributing the source code of your own app, but you can&#x27;t statically link to Qt&#x27;s libraries. <a href="https:&#x2F;&#x2F;www.qt.io&#x2F;qt-licensing-terms&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.qt.io&#x2F;qt-licensing-terms&#x2F;</a>