1) you use the LGPG license. Then you can keep your application closed source / proprietary as long as you link with the Qt libraries dynamically and provide your changes (if any) to the Qt libraries only;
2) you use the commercial license. Then you can keep everything closed if you want (and the requirement to link dynamically disappear).
1) you use the LGPG license. Then you can keep your application closed source / proprietary as long as you link with the Qt libraries dynamically and provide your changes (if any) to the Qt libraries only;
2) you use the commercial license. Then you can keep everything closed if you want (and the requirement to link dynamically disappear).