Hi @tpiekarski, thank you for your query and consideration in requesting approval.
From what I can see of your project, you are essentially reproducing graphically in Qt the ‘streams’ sample application that we include by default @
https://github.com/Tobii/CoreSDK/tree/master/samples
so I don’t find any issue with you continuing with your intended application 🙂
So long as the gaze data is not being stored either to an external file you are within the rules of the Core SDK licence agreement. The only slightly gray area might be your gaze approximation algorithm however as this data is only being displayed and not stored or analysed (please confirm) then I would say you are all good!