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.
∙ Bug fixes and performance improvements.
∙ 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.
∙ 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.
∙ Bug fixes and performance improvements.
∙ Bug fixes and performance improvements.
∙ Bug fixes and performance improvements.
∙ Bug fixes and performance improvements.
∙ Bug fixes and performance improvements.
∙ Bug fixes and performance improvements.
∙ Bug fixes and performance improvements.
∙ Bug fixes and performance improvements.
∙ Bug fixes and performance improvements.
∙ Bug fixes and performance improvements.
∙ Introducing support for Danish!
∙ Bug fixes and performance improvements.
∙ Improved support for Chromebooks.
∙ Improvements to the scratch pad that is available while practicing.
∙ Our new My Classes feature organizes your assignments by class.
∙ Many multiple choice questions now explain why an option is right or wrong.
∙ The app now allows you to Sign in with Apple.
∙ Bug fixes and performance improvements.
∙ Improved navigation on tablets.
∙ Redesigned Search tab includes recent searches and a "Surprise me!" option.
∙ Bug fixes and performance improvements.
∙ Introducing support for Hindi!
∙ Bug fixes and performance improvements.
∙ Bug fixes and performance improvements.
Bug fixes and performance improvements.
Bug fixes and performance improvements.
- New Feature: "Mastery Challenges" available in Course Mastery - strengthen skills you’ve already practiced by unlocking 6-question challenges.
- Introducing support for Czech!
- Bug fixes and performance improvements.
- Introducing support for Korean!
- Introducing support for Serbian!
- Bug fixes and performance improvements.
- Bug fixes and performance improvements.
- Introducing support for European Portuguese!
- Better progress tracking of mastery goals and assignments (for coached learners).
- Bug fixes and performance improvements.
- Introducing support for German!
- Introducing support for Polish!
- Bug fixes and performance improvements.
Bug fixes and performance improvements.
Bug fixes and performance improvements.
This update includes a lot of improvements, just for you!
- We've completely redesigned the main screen of the app, to highlight your assignments and to give you quick access to the courses you've selected on our website.
- Bookmarks and downloads have a fresh design, and now you can download HD versions of videos!
- We've added support for Indonesia, and more languages are coming soon.
Take a look around, and let us know what you think by leaving a review!
Bug fixes and performance improvements.
Bug fixes and performance improvements.
Bug fixes and performance improvements.
- If your teacher has assigned some Course Mastery, it's now available in the app!
- Bug fixes and performance improvements!
Bug fixes and performance improvements.
Khan Academy has a new logo, which means we’ve also got a shiny new app icon! There are a many new features we’re working on for back-to-school — we’ll have those updates rolling out soon!
Bug fixes and improvements.
We have some great updates in this release that we're excited to share! You can now:
- See your upcoming assignments in the Explore tab
- Navigate between your assignments more easily
- See when you’ve successfully completed an assignment
- Better track which assignments you've completed and which ones you still need to do
- Enjoy an improved overall experience with our updates to the color palette
Bug fixes and improvements.
Save time as you prep for a test or catch up in class. When you take a quiz or unit test, you'll get personalized recommendations on what to study next. Quizzes and unit tests are currently available in math and science, and we'll be adding more soon!
Bug fixes and improvements.
Bug fixes and improvements.
Bug fixes and improvements.
Bug fixes and improvements.
Bug fixes and improvements.
Phone users can now create a Khan Academy account from the profile tab. Signed in users can also view, add, and remove coaches from the settings screen.
Bug fixes and improvements.
Bug fixes and improvements.
Bug fixes and improvements.
Bug fixes and improvements.
Bug fixes and improvements.
We’ve built new tools to make practicing more fun, and have added assignments.- Stuck on a problem? You can now skip it and continue practicing.- We’ve added assignments - your teacher or coach can now assign you work to complete on your mobile device.- We show your progress on exercises throughout the app so that you can practice and keep growing.- Our exercises got a fresh coat of paint.Want to learn more about using Khan Academy in your classroom? Check out khanacademy.org/resources
Bug fixes and improvements.
Bug fixes and improvements.
