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Qt is a cross-platform application C++ framework that is used for developing application software with a graphical user interface (GUI), and also used for developing non-GUI programs such as command-line tools and consoles for servers. Example cross-platform applications which use Qt include Autodesk Maya, FreeCAD, Mathematica, Google Earth, Linux KDE GUI, OpenSCAD, Skype, Ubuntu, and VLC media player.

What's New

Version 5.3.1:

Note: MacUpdate Desktop and Finder report that the version number is 3.1.2; the developer states it is 5.3.1.

  • Performance optimizations for Qt Quick Engine's JIT compiler code generation and important bug fixes, especially on ARM (QTBUG-39289)
  • QAbstractProxyModel::sibling to now works in the same manner as with Qt4
  • Many small fixes to Qt Quick more...


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Qt Cross-Platform Framework User Discussion

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Markus Winter Member IconComment+360
Markus Winter

I thought about using Qt for a new app of mine so I had a look at their website. Please correct me if I'm wrong but if I get this right then Qt is free only for open source (GPL v3 and LGPL v2.1) projects but if you want to sell your software then it is a MONTHLY $399 subscription?

Reply3 replies
Version 5.3.0
Markus Winter

P.S. Don't they have something cheaper for small developers? I don't exactly think I'm an Enterprise, but there seems to be only one commercial license …


Qt can be used for commercial software with the LGPL version.

Markus Winter

Thanks Kevin, that makes more sense now. Will give it a try then :-)

--marc Member IconReview+35

Netbeans & Eclipse focus on cross platform applications based on Java. And, I've used both for Java application development.

However, Java is not available in such places as iOS.

This summer, I discovered the Qt for iOS Preview starting with the Qt 5.1 release. As examples, Qt based applications 'SubAttack' and 'QtQuicksand' were available free in Apple iTunes App Store.

I have also found the Qt5 to be a useful IDE for even generic, class console based C/C++ applications. GUI applications were reasonably easy to create with the help for community YouTube tutorials.

The Qt has worked well for applications with serial connections to the Arduino.

So, I currently use Qt Creator as my primary C/C++ IDE and Qt Library as my preferred cross platform toolkit.

Reply0 replies
Version 5.1.1
Abramurkwian Member IconReview+37

Definitely the best cross-platform C++ framework ever! Good C++ knowledge and a few Qt extensions is enough to create excellent, professional looking GUI applications, with a look and feel typical for the operating system used. The installation is clean and easy. On the Mac, Objective-C programming skills are not needed at all. With a Qt-Creator one can design and create GUI in minutes. Of course, the same can be created "by hand" from scratch. Qt is based on a "signals-slots" concept, similar to the "sender-receiver" used in OSX. It is easy to learn, the application examples and the on-line documentation are very helpful. Qt is free for non commercial use, so one can learn it as long as needed.
Important - on the Mac, the newest version of XCode (with Command Line Tools) must be installed.
I am not connected with Digia Inc. (the current owner of Qt) in any way - I have just used it for over 2 years and I am excited about all its features.

Reply0 replies
Version 5.1.1
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> 5 2


Current Version (5.x)


Downloads 1,312
Version Downloads 132
License Free
Date 25 Jun 2014
Platform Intel 64 / OS X
Price Free
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