Simple Poll - The easiest way to create polls in Slack
Curious Polls - Answer a question once a day for the chance to win £100/$100
Twitter Polls - Polls embedded in tweets
minipoll - Create simple shareable polls in seconds
Decidr - Make better decisions with quick A/B polls
Polls for iMessage - Group Decisions Made Easy. Create polls, vote, and view the results directly in iMessage. The easiest way to make any group decision.