PingPong is a very simple audience-response tool that enables quick interaction with a class using any device.
Unlike Socrative or Kahoot, you don't need to create any questions within the app. PingPong is designed to be used alongside ad-hoc questions written on a whiteboard or as part of a PowerPoint presentation.
The host creates a room (needs a Google or a Facebook login) and gets a room code. The audience can either access this room via the app, or via a web browser at : gogopp.com/en/web