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 6.4.0

Bug fixes and performance improvements.

This is the last release that will support iOS 10, and thus the last version that will run on 32-bit devices such as the iPhone 5, iPhone 5c, and fourth-generation iPad. To continue receiving Khan Academy updates, please upgrade to iOS 11.1 or later.

Ratings and Reviews

4.1 out of 5
266 Ratings

266 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.

Jazzydolly ,


Am enjoying using this app somewhat, but I keep getting locked into activities and having to terminate the app to get anywhere else. Sometimes the arrow disappears and sometimes it just doesn’t respond, nor does the practice again button when it happens. Also have tried to watch a video from within an activity and the video doesn’t play but the sound does with no way to control it other than to terminate the app. Very frustrating.
I also find that if the app goes offline I have to terminate and reinitiate to bring it online, which seems to be whenever I go out of the app and return to it.

EDIT: uninstalled/reinstalled and the problem seems to have disappeared. I have a new feedback suggestion: the keyboard needs to be swiped in some activities to get to buttons for exponents and such, however you cannot swipe it without pressing a button on the current keyboard. This is difficult to get around and creates a barrier to answering correctly for mobile users. If a button could be added to switch between keyboards, it would fix this :)

Developer Response ,

Hey there!

If you're still having issues with the app, try a few basics such as uninstalling and reinstalling the app. If the issue persists, please submit a support ticket in our Help Center:

Thank you for your interest in helping to improve Khan Academy!

...---___ ,

Support required

Khan academy still doesn't have split view support; disappointing. I hope it's in the works soon. Split view is a feature that will greatly supplement(actually essential)the learning experience for your students wishing to do digital/paperless notetaking on the ipad. Having split view will allow students to simultaneously access both the learning materials and then be able to take notes at the same time like a real classroom, it will help with engaging with the material better to help better and more comprehensively remember as notetaking is an active process. I know personally it will help me as a student to engage with the khan academy app/course materials more as it increases usability(and situations) and user experience. An example I was can give of the split view feature positively complementing khan academy app in action would be of students taking math courses in khan whilst having the app split together with a writing app(note app, whiteboard, blank scribbling app)this writing app will be used for maths working out and upon reaching the answer be able to immediately submit into khan academy app for answer checking; this ensures studying/learning/taking classes without losing or breaking any nice work flow, a seamless using experience...I hope to see support for split view soon on the horizon.
Thank you!

Developer Response ,

Hi 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 other Khan Academy members can add their thoughts to yours and vote your idea.

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.


Khan Academy
79.3 MB

Requires iOS 10.0 or later. Compatible with iPhone, iPad and iPod touch.


English, Bulgarian, French, German, Indonesian, Norwegian Bokmål, Polish, Portuguese, Simplified Chinese, Spanish, Turkish

Age Rating
Rated 4+
© 2019 Khan Academy


  • Family Sharing

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

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