What are some alternatives?
Slido - Live Q&A & polling platform for meetings & events
SurveyLegend - SurveyLegend is an online survey application enabling users to create engaging mobile-ready online surveys.
Mentimeter - a web-based polling tool for workshops, conferences & events
Poll Everywhere - Audience response system that uses mobile phones, twitter, and the web. Responses are displayed in real-time on gorgeous charts in PowerPoint, Keynote, or web browser.
Simply Voting - Cloud-based voting for election management across industries
Wooclap - A web-based platform that helps teachers boost participation and measure the level of understanding of students' in class thanks to smartphones.