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!
GitHub Polls - Polls for GitHub issues and readme
VWO On-page Surveys - On-page pop-up surveys that reveal insights from visitors.
Curious Polls - Answer a question once a day for the chance to win £100/$100
MetaSurvey - MetaSurvey provides light and high engagement surveys for e-commerce.