Created in 2007, Poll Everywhere is a web-based audience response system that provides real-time interactions with audiences via mobile devices.
From the Company Overview:
On the surface, Poll Everywhere is a simple text message voting application that works well for live audiences. People vote by sending text messages (or using Twitter) to options displayed on-screen. The poll that is embedded within the presentation or web page will update in real time. Advanced uses include texting comments to a presentation, texting questions to a presenter, web voting, and SMS interactivity in print, radio, and TV.
Furthermore, users can download reports, analyze polling results, and add images or LaTeX syntax to questions. Poll Everywhere integrates with popular presentation software such as PowerPoint, Keynote, and Google Slides. The application is available in almost any language.
Poll Everywhere is headquartered in San Francisco, California.