I'm currently rewriting my Mac application. Its prototype was written in Qt, but I'm now dropping Qt for several reasons:
1. I demoed my application to my friends and they all complained that it didn't behave exactly like a native Mac application.
2. Qt5 has a lot of UI bugs on Mac OS X.
3. The LGPL license of Qt may not compatible with Mac App Store [1].
4. I could buy the commercial license of Qt, but it's $215/month for Mac OS X. I don't know if my app is going to sell at all, so I can't afford that kind of burden.
#3 is Apple's fault. I'm not using OS X so I don't know about their installation policies. Do they require to use their store to install applications now? In the past you could just provide packages on your own.
As to 3), unless you are making closed source changes to Qt, I can't think of any way that the LGPL could make your app incompatible with the Mac App Store.
1. I demoed my application to my friends and they all complained that it didn't behave exactly like a native Mac application.
2. Qt5 has a lot of UI bugs on Mac OS X.
3. The LGPL license of Qt may not compatible with Mac App Store [1].
4. I could buy the commercial license of Qt, but it's $215/month for Mac OS X. I don't know if my app is going to sell at all, so I can't afford that kind of burden.
[1] http://blog.qt.digia.com/blog/2014/10/01/benefits-of-the-ind...