Incoming Feedback by Hotjar - Instant visual feedback for your website or app!
FareUpThere - Earn rewards for your feedback on flights
Canny - Canny helps you collect and organize feature requests to better understand customer needs and prioritize your roadmap.
RoadGoat - Map where you've traveled. Get matched with best places to go next!
ProductBoard Customer Feedback Portal - Share feature plans and collect feedback at scale for free
Skyscanner - Skyscanner.com compares over 1000 airlines to find you the cheapest airfares, fast.