TapPoll is a quiz and polling app for the iPad, iPhone and iPod Touch.
It can be used for fun, for studying or even polling in the classroom.
Quiz “banks” can be created at TapPoll.com (free account registration required) and can be shared among your friends or in a classroom.
Polls are for live, instant feedback. The results of a poll are graphed instantly on TapPoll.com as responses are being made on the devices. This is great for classroom feedback.
Several public quizzes are available for your enjoyment with more being added all the time. You can also create quizzes and submit them for public use.