Burner Page - Validate ideas with burner pages in < 60 seconds

Canny - Canny helps you collect and organize feature requests to better understand customer needs and prioritize your roadmap.

WebAsk - Learn to read the minds of your customers, co-workers and followers with this fully-customizable and light-weight toolkit for collecting and processing user feedback.

Feedback Fin - Collect feedback on any website (from Webflow to React webapp) by simply plugging in a just few lines of code.

Upvoty - User feedback in 1 simple overview 🔥

Instabug - The top apps in the world rely on Instabug for beta testing, user engagement and crash reporting.