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.
brandquiz - Build beautiful, fully customizable quizzes, surveys & more
LimeSurvey - LimeSurvey: the Online-Umfrage Tool - Open-Source Suryeys
Knowt - An app that uses AI to turn your notes into review quizzes.
Quizlet - Quizlet allows you to review and create flashcards for a variety of subjects, such as math and reading.
DOOZY - The social space for virtual teams