This is a great AFL tool that allows you to set a quiz for students to fill in. The quiz is made in an account and shared via a room code and a website. Students do not need to log in to anything to use it. This is a really good way to track progress in lessons and see the level of understanding.
You can set multiple choice, cialissick short answer or picture based questions and there is a variety of options for how to run the quiz.
I have also used this when sorting out options with groups as it allows for a spreadsheet of results to be created