We have reviewed 11 quiz applications to find out which ones would be good choices to help university teachers to improve the quality of their classes. The emphasis of this survey is at class-level improvement. With respect to this goal, being able to do online quizzes would be a must-have feature, whereas offline quizzes would be nice to have, but not essential for our consideration. For the same reason, a feature to evaluate an individual student’s performance will also be left out from this survey,