[Const-me]

C++ is harder to use, so developers are more expensive to hire.

QT is either GPL which is viral i.e. you have to open source your software under the same license, or quite expensive. Even if you’re working on open source GPL software, free QT edition has less features, esp. on embedded.

[detaro]

> QT is either GPL which is viral i.e. you have to open source your software under the same license,

it is not.

[Const-me]

Technically, LGPL option allows using in proprietary software. Practically, static linking is often better e.g. makes executable much smaller. And even with dynamic linking, see this note from https://blog.qt.io/blog/2009/11/30/qt-making-the-right-licen...

> If you are shipping an executable, you must include any data and utility programs needed for reproducing the executable (i.e. must provide components needed to recompile with a new version of the library) unless such data and utility programs are normally distributed with the major components of the operating system on which the executable runs

For developers of proprietary software, flutter’s BSD 3 clause license is way easier to comply.