AbTest.io - A free url shortener with A/B testing features
Incoming Feedback by Hotjar - Instant visual feedback for your website or app!
GoodUI Evidence - People's A/B test results that show which UI ideas work best
Canny - Canny helps you collect and organize feature requests to better understand customer needs and prioritize your roadmap.
PreFlight - Preflight is an Automated Web Testing tool. Allows everyone to automate Web UI tests.
ProductBoard Customer Feedback Portal - Share feature plans and collect feedback at scale for free