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.
Planogy - A feedback platform for all the creative work
SurveyJS - Feature rich and open source surveys for embedding into websites.
FakeClients Feedback - 🖌 A simple, free to use platform for design feedback
Votee - Easy, reliable, and cost effective market research
Feedback by Pixelic - Painless design feedback and version control.