Survicate - Collect feedback on your website and find out more about your visitors.
Customer Feedback Portal - Ask customers what you should build next
Feedback Fish - Collect feedback & make your customers happy.
Feedback Tools - Curated directory of tools for getting all the feedback
Emojicom.io - Capture your visitors emotions
Canny - Canny helps you collect and organize feature requests to better understand customer needs and prioritize your roadmap.