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You can use the LGPL version. The only real restriction is that you can't link with Qt statically.

You can link statically as long as you make it possible for your users to re-link with a modified version of Qt. If you have ClosedProgram.exe and distribute ClosedProgram.obj and QtSource.zip you're fine.

Universities of all places should prefer open source tools and should release their projects as open source.

Licensing sounds like an excuse to justify your choice.

Yeah, they license windows already...

We're building this for a company. What I mean is that its a big bureocracy to justify buying stuff.

Last time I checked, Qt was GPL/LGPL/Commercial. You can use the LGPL license just fine as long as you statically link the so/dll files.

I do understand not wanting to have to verify/check your obligations, of course. Still, Qt is a fantastic piece of software and a number of companies that I know of use the LGPL version just fine.

you mean as long as you do dynamicall link?

Yes, as long as you do dynamic linking Qt is free to use.

Yes, bad typo...

They have a free community version under GPL: https://www.qt.io/download-open-source/?hsCtaTracking=f97721...