Khan Academy

4.3
164K reviews
10M+
Downloads
Content rating
Everyone
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About this app

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 http://khanacademy.org, 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 http://khanacademy.org.

Khan Academy is a 501(c)(3) nonprofit organization, with the mission of providing a free, world-class education for anyone, anywhere.
Updated on
Mar 11, 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, App activity and 2 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.3
149K reviews
Chris Wella
January 23, 2024
Love Khan Academy. I preach about it all the time to everyone. Got this app to further my studies. At first it was great. Then I noticed some random senseless lag issues that seemed clientside. No problem, this good material is worth the wait. Today, I just lost about a month's progress in all my courses. It said "We had some problems tracking your progress" and stopped loading quick. Now app shows white screen for a long time. Edit: It is fixed for now.
132 people found this review helpful
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Michele Cheow
January 7, 2024
I'm on a Google Pixel phone and the videos play fine but the interactivity has some issues. When I tap to see the controls, they either don't come up or there's a lag. When the controlls so come up, some of them don't work. The expand screen button was non functional. Skip ahead barely worked and the speed up/down button didn't indicate any change until I kept tapping it and eventually reached 2x speed. I also didn't receive a green check after watching one of the videos several times.
153 people found this review helpful
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Khan Academy
January 16, 2024
Hi Michele, Thank you so much for reporting this serious problem with the video player. Our development team worked hard to solve this as soon as possible and a fix was recently deployed. Make sure you uninstall and reinstall the app to solve this issue. We apologize for the trouble. Feel free to contact us at: http://khan.co/KA-support.
Beth Lee
December 4, 2023
I love the Khan Academy site, but this app is so frustrating! I have downloaded it multiple times, but it never allows me to actually sign in; it is forever in the loading stage. There doesn't seem to be any way to get back to the actual content, so I have to uninstall it. If I skip the sign in and go straight to the content, none of the lessons load either. They are perpetually in the spinning circle of death screen. I am hoping this is just some sort of glitch that can get sorted out quickly.
141 people found this review helpful
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Khan Academy
December 7, 2023
Hi, Beth! We'd love to have a greater understanding of the issue you're running into. Could you please submit a support request in our Help Center? Here's the link: http://khan.co/KA-support. Thank you for being a part of Khan Academy!

What's new

∙ Introducing Experimental Dark Mode! Dark Mode is currently available in select areas of the app. We have future plans to extend it everywhere, but for now, think of it as a moonlit sneak peek. The feature can be turned on and off under Settings.
∙ Bug fixes and performance improvements.