Twitter Polls - Polls embedded in tweets
Quizzes for Pages - Quizzes for Pages is an application to create and share quizzes on your Facebook Page.
Simple Poll - The easiest way to create polls in Slack
Outgrow - Enabling marketers boost conversion with interactive, beautiful & viral quizzes/calculators.
GitHub Polls - Polls for GitHub issues and readme
doopoll - Create live, instant, editable polls effortlessly