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Do you need to pay for Qt?
the program will be free and open source. Do I have to pay money or do I have to do something else for the company that created qt (I have a trial version of qt)? No. You do not have to pay money if you develop open source app.
Why is Qt not free?
This is because the Qt Open Source Edition uses the GNU GPL, which forbids the imposition of any license restrictions on software based on the Open Source Edition that would make it non-free.
Why does Qt cost?
@coders said in Why is QT so expensive? 5000+ dollar a year: It’s free of charge. The open-source source version of Qt is free in all senses of the word (free beer and free speech).
Is Qt free for students?
Who is eligible for the educational license? Qt provides educational licenses for free access to Qt software to Qualified Educational Institutions/universities. Although it is for students and educators, only professors and institutions may apply for the licenses.
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 the Qt license open source or commercial?
Qt for Application Development is dual-licensed under commercial and open source licenses. The commercial Qt license gives you the full rights to create and distribute software on your own terms without any open source license obligations.
Is it legal to use Qt for device creation?
Qt for Device Creation is a product available only under a commercial license. This allows you to, for example, control your device’s user experience, and build proprietary functionality on top of Qt and to lock down your device.