Incoming Feedback by Hotjar - Instant visual feedback for your website or app!
Survicate - Collect feedback on your website and find out more about your visitors.
ProductBoard Customer Feedback Portal - Share feature plans and collect feedback at scale for free
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