myQuiz.org - myQuiz is an Audience Engagement Cloud Platform
Kahoot! - Kahoot! makes it easy to create, play and share fun learning games in minutes—for any subject, in any language, on any device.
TestMOZ - TestMOZ is an online platform for creating interactive quizzes and questions to keep your audience engaged on your social media, websites, or blog channels.
Sli.do - Slido is the ultimate Q&A and polling platform for live and virtual meetings and events. It offers interactive Q&A, live polls and insights about your audience.
QuizWhizzer - QuizWhizzer is a platform that allows you to create a quiz to engage your audience inactivity.
Mentimeter - a web-based polling tool for workshops, conferences & events