You can learn anything. For free.

Spend an afternoon brushing up on statistics. Discover how the Krebs cycle works. Learn about the fundamentals of music notation. Get a head start on next semester's geometry fundamentals. Prepare for the SAT, GMAT, LSAT, MCAT, NCLEX-RN, and AP 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 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: Your learning syncs with, so your progress is always up-to-date.

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

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

What’s New

Version 6.6.0

- Introducing support for Korean!

- Introducing support for Serbian!

- Bug fixes and performance improvements.

Ratings and Reviews

4.1 out of 5
461 Ratings

461 Ratings

Editors' Notes

Khan Academy is an education app for everyone—whether you’re a parent helping your first grader with geometry or a postgrad looking for a deep dive into microfinance. If there’s a topic you want to learn about—no matter how basic or advanced—chances are Khan Academy has a video lesson for it.

Mythiçal Phønïx ,

Great! But.....

The problem is that you won’t be able to change your Avatar if you’re on the app Version. Because with energy points you can change your Avatar. Anyways, It’s helped me a lot to learn the things I won’t be able to learn in school, it’s a great tool, you should download this.

Developer Response ,

Hi, there! Though we do not currently offer a way to change your avatar, please know that we continue to add new features to improve the experience at Khan Academy. I encourage you to share your request in our discussion forums (, where users can add their thoughts to yours and vote on your suggestions. Thank you!

Iginlfan77 ,

Great learning tool, app needs work

Please, give us a n option to simply type in answers. Some require touch writing, and it’s infuriating to get a complex answer written in their correctly.
Feedback link in the app doesn’t work. Opens a pop up where both submit and cancel do nothing, forcing you to leave the app.
Reached a question where I can neither get hints or skip the problem, therefore I can no longer practice that topic.
I love khan academy, but these little problems can add up to ruin what would be an amazing learning tool

Developer Response ,

Hey there!

Thank you so much for taking the time to provide feedback on your experience with the Khan Academy App!

We'd love to hear your feedback in detail in our discussion section on the site where it can be voted and commented on by Khan Academy members in order to think about the experience improvement.


Khan Academy
57 MB

Requires iOS 11.0 or later. Compatible with iPhone, iPad and iPod touch.


English, Armenian, Bengali, Bulgarian, French, Georgian, German, Indonesian, Korean, Norwegian Bokmål, Polish, Portuguese, Serbian, Simplified Chinese, Spanish, Turkish

Age Rating


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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