Simple Poll - The easiest way to create polls in Slack
Typeform - Create beautiful, next-generation online forms with Typeform, the form & survey builder that makes asking questions easy & human on any device. Try it FREE!
Twitter Polls - Polls embedded in tweets
SurveyCount - Make and distribute surveys
Polls for WhatsApp - Create & share quick polls in your WhatsApp groups
Crowdoscope - A research tool for real-time collective intelligence.