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.

Voxer - Turn your phone into a Walkie Talkie. Don't waste time on phone calls and voicemails.

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.

NextPlane - NextPlane offers cloud-based, scalable unified communications federation service for the enterprise.

Kahoot! - Kahoot! makes it easy to create, play and share fun learning games in minutes—for any subject, in any language, on any device.

Sameroom - Chat interoperability-as-a-service