Two replies mention licensing, with two different answers (It's easy, people just don't understand! It's hard, people just don't understand!). Personally, I've tried a couple of times to read the license information on the Qt site and sort out how the licensing really works. I still only have a rough understanding. It seems like information on the Qt site is intentionally vague so you'll be more inclined to buy a commercial license just to feel "safe" using it. Unfortunately, any commercial projects I work on can't justify the commercial license price.Anyway, the point is, people may not want to use Qt without being absolutely certain about how the licensing works and they (like me) probably don't have the time to try to understand the poorly organized information on the Qt site.
jcelerier|6 years ago
You could just go to the repo and check the licenses there :
https://github.com/qt/qtbase