Acquainted - A simple tool to create conversational polls and surveys
Decision Jam - Make better decisions quickly with your team
AbTest.io - A free url shortener with A/B testing features
uHerrd - uHerrd is one of the best platforms that help you to create and search powerful opinion polls.
Simple Poll - The easiest way to create polls in Slack
uAnswer - Test how much your friends know you with a simple quiz