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Qt license for your project
Somco is an authorized dealer of Qt licenses. Get consultation and discover licensing options matching your project needs.
When is a commercial Qt license needed?
Making the right choice can be hard. Here are a few common cases in which a commercial license would be needed for your project.
- Distributing software which does not meet LGPL requirements.
- Distributing consumer devices backed with Qt
- Developing software that needs a Qt implementation of M2M protocols like MQTT or CoAP.
- Using commercial-only modules like Qt Charts, Qt Virtual Keyboard, or Boot to Qt.
Discover Qt open-source and commercial options
Free of charge
A strong copyleft license requiring you to release your full source code if you distribute software built with Qt. Great for open-source users.
Included:
Free of charge
A more flexible license usually requires dynamic linking and allows closed-source apps, but not all Qt modules are available under it. You can develop B2B embedded devices.
Included:
4200 €/Year
A commercial license for building closed-source applications with full Qt module access and professional support. No need for open-source compliance.
Included:
4800 €/Year
A higher-tier commercial license offering full Qt modules, enterprise tools, extended support, and no open-source obligations.
Included:
Custom
A commercial package for embedded devices, giving access to full tooling; Qt DC also involves an additional volume-based fee.
Included:
Custom
The most complete Qt license for embedded products, with all modules, enterprise tools, and a required volume-based device fee.
Included:
How to use Qt for free?
Qt is an open-source framework and will remain such. It is a great and rich product, so it's not a surprise that commercial options exist. Yet, you can still use it for free in commercial projects without disclosing the source code. Schedule a training with us to consult on your case in detail before you invest.
Qt LGPLv3 obligations
- Provide the Qt source code or instructions to obtain it, along with your modifications to the Qt.
- Better link dynamically
- User needs to be allowed to re-link or modify the Qt LGPL-linked libraries (Consumer Products only)
- The statement that the LGPL license is used needs to be put in the application.
- Copy of LGPL License is distributed with application.
- Don't mix licenses.
Looking for Qt experts?
As experienced Qt developers, Somco Software can help you build modern, efficient, and scalable applications based on Qt.
C++, Python, Qt Widgets, QML? We've got you covered.
Qt Licensing Explained - On-demand training
Understand Qt licensing. Use it correctly and avoid overpaying. Just be compliant and safe. Learn everything your team needs to know about Qt licensing. From the differences between GPL, LGPL, and Commercial licenses to practical scenarios.
When Qt can be used for free under open-source terms
01
When you must use a commercial license
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All LGPL requirements in detail
03
What's exactly included in the particular license
04
What is the most effective option for your case
05
Project-specific consultation
06
Contact us
We'll address every query and pinpoint the ideal strategy for your project's success.
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Lukas Kosiński
Chief Executive Officer
FAQ
We’ve compiled the most frequently asked questions to help you get started with Qt license.
How to obtain commercial Qt license?
Just fill out our contact form and reach out to us. We will message you back and handle the rest. If you get the license from us, you receive additional individual support.
Where I can look for support in coding my Qt project?
Somco Software - our Qt consulting company can help you achieve your objectives by providing you with skilled developers. See our Qt development service page for more details.
Is Qt framework free?
All Qt essentials (Qt Core, Qt Quick, Qt QML, Qt Widgets, etc.) are available under free open source licenses (LGPL and GPL). As long as your project complies to the open source licenses obligations you can use Qt under those free licenses
How much does the Qt license cost?
If you go with us, Qt for Application Development costs from 4200 to 4800 EUR yearly with extra professional support from our team members. Pricing of Qt for Device Creation is provided on request.
Are there any licensing discounts for small businesses?
Qt for Small Business license is available for 530€ yearly for Qt for Application Development and 1060€ yearly for Qt for Device Creation. You can have 3 small business licenses per company. Your annual company's revenue is max. 1 000 000 EUR/USD. and allows for mobile, desktop and embedded development. This license is available for businesses which do not exceed revenue and founding of 250 000$ and do not need more than 4 developer licenses.
Do I need a commercial Qt license to develop any application?
Commercial license is not needed if your commercial project uses only Qt modules available under LGPL license and you comply to LGPL obligations while distributing the product. Licesne is not needed if you are planning to distribute an open-source project and comply with GPL or LGPL license obligations for the Qt modules that you are using.
When do you need the Qt license?
A commercial license is needed if you don't want to comply with open source licenses obligations, plan on distributing devices using Qt for embedded platforms, want to use Qt commercial-only modules, or are looking for dedicated support from Somco Software or the Qt Group. Examples of common cases where the Qt license is needed include creating consumer electronics, automotive HMI, etc.
How to make sure that you meet LGPL requirements?
The best way is to contact Somco Software and ask for a consultation offer. It's essential to base on facts verified by experienced external than some half-truths.