Khan Academy allows you to learn almost anything for free.

- You can learn anything – for free: Over 10,000 videos and explanations at your fingertips in math, science, economics, history, and much, much more
- Sharpen your skills: over 40,000 interactive Common Core aligned practice questions are included with instant feedback and step-by-step hints. Follow along with what you’re learning in school or practice at your own pace
- Quickly find what you need: Redesigned navigation and search make it faster to find what you want
- Keep learning even when you’re offline: Bookmark your favorite content to “Your List” for easy access, and download it to keep learning even when you’re not connected to the internet.
- Pick up where you left off: Your learning syncs between your iPhone and, 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, and even the humanities with playlists on art history, civics, finance, and more.

Spend an afternoon brushing up on statistics. Discover how the Krebs cycle works. Learn about the fundamentals of music notation. Prepare for the upcoming SAT, GMAT, or MCAT. Or, if you’re feeling particularly adventurous, learn how fire stick farming changed the landscape of Australia.

It doesn't matter if you are a student, teacher, home-schooler, principal, adult returning to the classroom after 20 years, or a friendly alien just trying to get a leg up in earthly biology—Khan Academy's materials and resources are available to you completely free of charge.

Head over to to learn more."Khan Academy allows you to learn almost anything for free.

What's New

Version 5.2.1

- If your teacher has assigned some Course Mastery, it's now available in the app!
- Bug fixes and performance improvements!

Ratings and Reviews

4.4 out of 5
209 Ratings
209 Ratings

Editors' Notes

Sharpen your skills with interactive questions and videos.

Harold Alan

Error in the app. Pls read this makers.

I don’t know makers that whether you read these but I have a complaint. The app is practically useless for Indians. But I have given 5 for the website, cause that is really useful and engaging. But the app does not contain anything from the Indian curriculum like the way it does on website. So I opened a chapter from the web version ( in my case relations and functions ) and tried the open in app button, and it went to the app and the app stops working. Pls add the Indian curriculum to the app by next update. I don’t want to criticize you for the wonderful work you guys are doing but pls update these errors and perfect your work.


Can’t find INDIAN Curriculum in the app. iOS user

First of all I would like to thank KHAN ACADEMY for doing such a great work.
I never liked maths in my school days but now I have started loving it .. the method of explaining each and every topic is simple and easy for the learners to understand.
Here is an issue I guess only with iOS users in the application on my phone I am not able to find INDIAN CURRICULUM . I tried everything on my phone to fix it but I guess it’s the problem with the application. Therefore I request KHAN ACADEMY to update it whenever possible.



Khan Academy
184.1 MB
Requires iOS 8.0 or later. Compatible with iPhone, iPad and iPod touch.
English, French, Norwegian Bokmål, Portuguese, Spanish, Turkish
Age Rating
Rated 4+
© 2018 Khan Academy


  • Family Sharing

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

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