Kahoot! - Kahoot! makes it easy to create, play and share fun learning games in minutes—for any subject, in any language, on any device.
Camtasia - Camtasia 2018 makes it easy to record your screen and create polished, professional-looking videos.
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.
OBS Studio - Free and open source software for video recording and live streaming for Mac, Windows and Linux.
Mentimeter - a web-based polling tool for workshops, conferences & events
CamStudio - CamStudio is a screen capturing tool that records video from computer screen and save it to system’s storage with AVI extension, which is propped up by most frequent video players and editors.