Incoming Feedback by Hotjar - Instant visual feedback for your website or app!
Zazzy - Design and sell your own 3D printed jewelry
Canny - Canny helps you collect and organize feature requests to better understand customer needs and prioritize your roadmap.
Back Market - the refurbished (super) market
ProductBoard Customer Feedback Portal - Share feature plans and collect feedback at scale for free
FeedbackSpark - FeedbackSpark is in-product micro survey tool that helps product teams to remove guesswork from product development. Harness the voice of customer to drive product success.