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Khan Academy

You can learn anything

You can learn anything

Khan Academy

by Khan Academy
Select your subject
Khan Academy
Khan Academy

What is it about?

You can learn anything. For free.

Select your subject. Khan Academy gives you free rein to select the subject you want to learn about, with choices including topics in math, science, economics, humanities, and more. For each topic, the app advances you through a series of subtopics, thereby ensuring that you're well-equipped to tackle more challenging topics.

Select your subject
Watch and learn

Watch and learn. Khan Academy features lectures available through YouTube-hosted videos complete with instructive doodles, diagrams, and other visual aids. The app also provides reading materials on different topics and, on iPad, interactive math exercises.

App Details

Last updated
September 20, 2022
Release date
March 11, 2012
More info

App Screenshots

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App Store Description

You can learn anything. For free.

Spend an afternoon brushing up on statistics. Discover how the Krebs cycle works. Get a head start on next semester's geometry. Prepare for upcoming exams. Or, if you're feeling particularly adventurous, learn how fire-stick farming changes the landscape of Australia.

Whether you're a student, teacher, homeschooler, principal, adult returning to the classroom after 20 years, or a friendly alien trying to get a leg up in earthly biology — Khan Academy's personalized learning library is available to you, for free.

- Learn anything, for free: Thousands of interactive exercises, videos, and articles at your fingertips. Study math, science, economics, finance, grammar, history, government, politics, and much, much more.

- Sharpen your skills: Practice exercises, quizzes, and tests with instant feedback and step-by-step hints. Follow along with what you're learning in school, or practice at your own pace.

- Keep learning when you're offline: Bookmark and download your favorite content to watch videos without an internet connection.

- Pick up where you left off: Tailored to your current learning level, our mastery system gives instant feedback and recommendations on exactly which skills and videos to try next. And, if you choose to create a free account, your learning syncs with, so your progress is always up-to-date across all your devices.

Learn using expert-created videos, interactive exercises, and in-depth articles in math (arithmetic, pre-algebra, algebra, geometry, trigonometry, statistics, calculus, differential equations, linear algebra), science (biology, chemistry, physics), economics (microeconomics, macroeconomics, finance and capital markets), humanities (art history, civics, finance, US history, US government and politics, world history), and more (including computer science principles)!

Already familiar with the Khan Academy website? Not all functionality is available in this app. Community discussions, computer programming content, test prep, parent tools, teacher tools, and district tools should all be accessed directly at

Khan Academy is a 501(c)(3) nonprofit organization, with the mission of providing a free, world-class education for anyone, anywhere.

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