wxWidgets - wxWidgets: Cross-Platform GUI Library
Survey Monkey - Create and publish online surveys in minutes, and view results graphically and in real time. SurveyMonkey provides free online questionnaire and survey software.
Electron - Build cross platform desktop apps with web technologies
Google Forms - Simple web forms from Google.
GTK - GTK+ is a multi-platform toolkit for creating graphical user interfaces.
Qualtrics - Qualtrics is the most trusted research platform, helping brands make crucial business decisions. From surveys to insights to action.