Anki - Anki is a program which makes remembering things easy. Because it's a lot more efficient than traditional study methods, you can either greatly decrease your time spent studying, or greatly increase the amount you learn.
myQuiz.org - myQuiz is an Audience Engagement Cloud Platform
LimeSurvey - LimeSurvey: the Online-Umfrage Tool - Open-Source Suryeys
QuizWhizzer - QuizWhizzer is a platform that allows you to create a quiz to engage your audience inactivity.
Quizlet - Quizlet allows you to review and create flashcards for a variety of subjects, such as math and reading.
Online Quiz Creator - Online Quiz Creator is a platform that allows you to create quizzes with a fun factor that keeps your audience engaged and not get bored.