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Khan Academy

Khan Academy allows you to learn almost anything for free

Khan Academy allows you to learn almost anything for free

Khan Academy

by Khan Academy
Select your subject
Khan Academy
Khan Academy

What is it about?

Khan Academy allows you to learn almost anything for free.

Select your subject. Khan Academy gives you free rein to select the subject you want to learn about, with choices including topics in math, science, economics, humanities, and more. For each topic, the app advances you through a series of subtopics, thereby ensuring that you're well-equipped to tackle more challenging topics.

Select your subject
Watch and learn

Watch and learn. Khan Academy features lectures available through YouTube-hosted videos complete with instructive doodles, diagrams, and other visual aids. The app also provides reading materials on different topics and, on iPad, interactive math exercises.

App Details

Last updated
January 28, 2019
Release date
March 11, 2012
More info

App Screenshots

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App Store Description

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.

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