What license is Qt under?

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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.

Does Qt require a license?

No. As long as you can comply with the (L)GPL requirements of the Qt libraries, then you do not need to purchase a “commercial license” from the Qt Company.

What does Qt license cost?

499 USD per year
The Qt Small Business license has all the Qt features for mobile, desktop, and embedded development for 499 USD per year.

How do I check my Qt license?

If you are unsure, you can check your License Agreement version from your Qt Account customer portal or contact Qt Sales.

Do I have 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.

Is Qt for free?

Is Qt Creator free? There is an open-source license which is free and a commercial license. The commercial license (Qt creator and Qt SDK) starts at $459/month.

Can I sell Qt applications?

It is ok to sell you application that has been written using Qt when: your application is dynamically linked to Qt libs. the original source of Qt has not been modified.

Is Qt opensource?

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.”

Is Qt free for Windows?

We believe in the Free Software movement where using software comes with certain rights, but also certain obligations. Use of open source licensing gives users four primary degrees of freedom when using Qt applications or devices: The freedom to run the program for any purpose.

Can I use Qt for free?

Is Qt fully open source?

What is the license for Qt for application development?

Can I install Qt on more than one device?

Yes. You can install Qt and our development tools on five devices per designated users. Our licenses are per individual, so all members of your project team using Qt need to have a commercial license. Can some developers in our team working on the same project use open-source version of Qt and some developers use Commercial version of Qt?

What is QQT 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.

What happens if I don’t renew my Qt license?

If you are a legacy perpetual license holder, you can continue to use your Qt license if you choose not to renew your annual support & maintenance contract. Please note that you will not have access to support, bug releases, or patches.

What license is Qt under?