CliffsNotes
CliffsNotes is a study resource for literature, school subjects, and test preparation on the web and iOS.
What CliffsNotes is
CliffsNotes is a study resource for literature, school subjects, and test preparation on the web and iOS. Its guides and articles cover literature, math, science, writing, foreign languages, accounting, government, and history, plus Advanced Placement, SAT, and other test resources. CliffsNotes says teachers and professors write its study guides. For books and plays, it recommends using a guide alongside a chapter or act, or reviewing it after finishing the work. Free online articles and literature guides are available alongside books and tools to buy. The iOS app for iPhone, iPod touch, and iPad includes summaries, quizzes, Cram Plans, and CramCasts. Free audio CramCasts provide three-to-four-minute literary overviews with author background, a summary, and three key points. Free users have limited access; paid subscription levels, benefits, and prices vary. Ask AI returns AI-generated answers, and submitted content may become publicly searchable.
Good
- Covers multiple school subjects
- Includes AP and SAT preparation resources
- iOS app offers summaries and quizzes
- Free articles and literature guides
- Short audio CramCasts are available
Watch out
- Free users have limited access
- Subscription prices and levels may vary
- AI output may be inaccurate or offensive
- Submitted Ask AI or tutor content may become public
Who it suits
It suits students seeking literature help, subject explanations, practice resources, or test preparation. The service is intended for educational, non-commercial, personal use under its terms.
Verdict
CliffsNotes offers broad study coverage with web access, an iOS app, and free literature materials. Check access limits and privacy terms before using paid or AI-assisted features.
The facts
Each one read from CliffsNotes's own pages, with the date it was checked.
What it does
- AI features
- The terms say the services may include AI features and that AI-generated output may be inaccurate or offensive and is not created or reviewed by humans.checked 8 Oct 2026
- Ask AI
- CliffsNotes defines Ask AI as a website tool that accepts questions and returns AI-generated responses.checked 8 Oct 2026
- Audio
- The About page says users can download free audio CramCasts that give a three-to-four-minute overview of a classic work, author background, a summary, and three key points.checked 8 Oct 2026
- Cancellation
- After cancellation, premium access continues through the current billing period and the account can continue using the free tier; prepaid subscription fees are not refunded under the stated terms.checked 8 Oct 2026
- Intended use
- The terms permit access to CliffsNotes content for educational, non-commercial, personal use, subject to the terms.checked 8 Oct 2026
- Literature study
- The site recommends using literature guides alongside reading a book or play, or as a review after reading it.checked 8 Oct 2026
- Literature study aid
- The site recommends using literature guides alongside a chapter or act, or to review after reading the whole work.checked 8 Oct 2026
- Mobile audio
- CliffsNotes describes a free audio CramCast as a three-to-four-minute overview with author background, a summary, and three key points about a literary work.checked 8 Oct 2026
- Paid access
- The service terms describe free users with limited access and paid users who purchase a subscription or other offering.checked 8 Oct 2026
- Pricing availability
- The terms say subscription levels, benefits, and pricing may vary and direct users to the Customer Support Center for plan details; no amount is stated on the page.checked 8 Oct 2026
- Privacy disclosure
- The official site links to a Privacy Policy, but the opened policy page displays a loading message rather than policy details.checked 8 Oct 2026
- Study guides
- CliffsNotes says its study guides are written by real teachers and professors.checked 8 Oct 2026
- Subjects
- The site offers study guides and articles covering subjects including literature, math, science, writing, foreign languages, accounting, government, and history.checked 8 Oct 2026
- Support
- The service terms list [email protected] for questions about the service and its terms.checked 8 Oct 2026
- Test preparation
- The site lists Advanced Placement, SAT, and other test-preparation resources among its products and topics.checked 8 Oct 2026
- Tutoring
- The service terms describe access to tutors who may provide answers, instruction, or tutoring in response to user questions, where offered and available.checked 8 Oct 2026
- Use limits
- The service terms limit use of CliffsNotes content to educational, non-commercial, personal use, unless otherwise permitted in writing.checked 8 Oct 2026
- User content privacy
- The service terms say content submitted through Ask AI or tutor services may be made publicly available through Learneo's searchable content library and may be accessible to anyone, including Learneo.checked 8 Oct 2026
The company
- Company
- The site identifies CliffsNotes as a Learneo, Inc. business.checked 8 Oct 2026
- Ownership
- The about page says Course Hero bought CliffsNotes from HMH in 2021; current footer branding identifies CliffsNotes as a Learneo, Inc. business.checked 8 Oct 2026
- Ownership history
- The About page says Houghton Mifflin Harcourt acquired CliffsNotes in 2012 and Course Hero bought it from HMH in 2021.checked 8 Oct 2026
Money
- Free content
- The site says it provides free online articles and free literature study guides, alongside books and tools to buy.checked 8 Oct 2026
Where it runs
- iOS app
- The about page describes an app for iPhone, iPod touch, and iPad with summaries, quizzes, Cram Plans, and CramCasts.checked 8 Oct 2026
- Mobile app
- The About page describes a CliffsNotes app for iPhone, iPod touch, and iPad with summaries, quizzes, Cram Plans, and CramCasts.checked 8 Oct 2026
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