Simple Poll - The easiest way to create polls in Slack

ShadowAide - ShadowAide provides you with a key way to keep your finger on the pulse of your customers, using our integrated tools for capturing Net Promoter Score and customer feedback.

GitHub Polls - Polls for GitHub issues and readme

SatisMeter - Identify unhappy customers in your web and mobile apps, or via email, solve their issues, reduce churn and grow your business.

minipoll - Create simple shareable polls in seconds

Relationwise - Relationwise gives you the most important insights on your customers in the easiest way possible.