Quizlet

Quizlet is a web and mobile learning platform for students and teachers that helps people study any subject using flashcards, practice activities, and classroom games.

Key capabilities include:

• Create and share flashcard sets, or study from sets made by other students and teachers
• Multiple study modes such as Learn, Test/practice tests, and game-style activities (availability and limits depend on plan)
• Teacher tools including Quizlet Live for in-class gameplay and (with teacher subscriptions) student progress tracking
• Premium study features such as ad-free studying, unlimited access to premium modes, and textbook/expert solutions

Pricing: Freemium. Free tier available; paid subscriptions start at $7.99/month or $35.99/year (Plus/Plus for Teachers) and $9.99/month or $44.99/year (Plus Unlimited). Family plans and group pricing are available. Subscriptions auto-renew, with free trials (7 days for students, 30 days for teachers).

Notable for combining a large library of user-generated study sets with structured study modes and teacher-focused classroom features across Web, iOS, and Android.