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

Mostly good. The lessons are digestible and mostly straight forward, but the speaker tends to not explain certain things (often simple things I admittedly should know.) Sometimes I get frustrated getting questions wrong and ask for hints only to find that I was marked wrong even though I got the answer right verbatim to the hint. If not for these flaws it would be perfect!

I like learning about the different kinds of math and science, and was sad to lack convenient resources after graduating. Khan Academy helps me keep learning. I can brush up on what I already understand, and move into stronger subjects as I build on what I know. I can go back whenever I feel I have the time, and there's no deadlines or expectations I have to meet. It's free education at my own pace! All the people behind this resource are amazing for making it accessible and easy to understand!

For people with OCD or for perfectionists, this app is very frustrating. Unit tests should not make your score go down in previous topics. It's bothersome to do the work all over again for a tiny mistake. It would be better if you did corrections to your answer and recieve half credit as you would do in school. Just a tip to be more inclusive to people who struggle with these things 🤗. Otherwise, great app. Learning is fairly easy and there's no homework so it's a win!

What's new

∙ Introducing support for Azerbaijani!
∙ Introducing support for Dutch!
∙ Introducing support for Hungarian!
∙ Introducing support for Marathi!
∙ Introducing support for Punjabi!
∙ Introducing support for Vietnamese!
∙ Bug fixes and performance improvements.