Lander - Lander is a powerful online tool to create Landing Pages.
Kahoot! - Kahoot! makes it easy to create, play and share fun learning games in minutes—for any subject, in any language, on any device.
Inbound Now - Build Landing pages, manage inbound leads, and create calls to actions to improve marketing with our Inbound Marketing Plugins for WordPress
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.
LeadPages - LeadPages™ Software is the world's easiest landing page generator. It's the easiest way to build conversion optimized & mobile responsive landing pages.
Mentimeter - a web-based polling tool for workshops, conferences & events