Is Qt free and open source?
The Qt framework is available under both open source and commercial licenses. This dual-licensing model is based on the principal of quid pro quo – roughly meaning “something for something.”
How much is a Qt Licence?
The Qt Small Business license has all the Qt features for mobile, desktop, and embedded development for 499 USD per year. What is so excellent about this offering is that you can distribute your applications to all our supported platforms (excluding MCUs, which is sold separately).
What kind of license do I need for Qt?
Qt Licensing. Qt licensed under commercial licenses is appropriate for development of proprietary/commercial software where you do not want to share any source code with third parties or otherwise cannot comply with the terms of the GNU LGPL version 3. Qt licensed under the GNU Lesser General Public License…
What are the benefits of a commercial Qt license?
The commercial Qt license gives you the full rights to create and distribute software on your own terms without any open source license obligations. With the commercial license you also have access to the official Qt Support and close strategic relationship with The Qt Company to make sure your development goals are met.
Is it legal to use Qt under GPL license?
With the commercial license you also have access to the official Qt Support and close strategic relationship with The Qt Company to make sure your development goals are met. Qt for Application Development is also available under GPL and LGPLv3 open source licenses. Qt tools and some libraries are only available under GPL.
Is it legal to use Qt with open source?
In case there is any doubt on whether the requirements of the open source licenses can be met in full, the commercial licensing option of Qt is often the best choice to avoid legal setbacks. We’re also happy to talk to you about your situation, but we aren’t in the position to provide any legal guidance.