Khan Academy

Khan Academy

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.

Ratings and reviews

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.

Its an amazing app, you get passionate learning and learning, so much topics and all are meticulously choosen to give you a great and reach content. Is like they filtered the best YouTube learning material for each topic and give it to you for easily understanding the basics of many topics. It will be great to have a second more technical level, but either way the app is great!!!!!!!

Dark Mode, Dark Mode, Dark Mode - Everyone is requesting it. No I will not go to your discussion forums, there are thousands of posts for years that already request this feature. I should not have to turn on my room light just to be able to look at my phone screen, the settings are at its lowest and I even have a special setting on my phone to help extra, its still not enough. Infinite loading screen whenever re-opening the app, forced to clear data and re-sign in just to use EVERY TIME

What's new

∙ Bug fixes and performance improvements.