Bug fixes and performance improvements.

You can learn anything. For free.

Spend an afternoon brushing up on statistics. Discover how the Krebs cycle works. Learn about the fundamentals of music notation. Get a head start on next semester's geometry fundamentals. Prepare for the SAT, GMAT, LSAT, MCAT, or NCLEX-RN. 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 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: Your learning syncs with khanacademy.org, 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, humanities (art history, civics, finance), and more!

(For our Indian learners, we have aligned math and science content in our app to NCERT/CBSE curriculum. Study more effectively for your 6-to-12-grade math classes with our quizzes and tests. You'll also build a strong foundation for your boards, CAT, GMAT, IIT-JEE, and other exams.)

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

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Khan Academy 7.5.2

Version:7.5.2

Uploaded:June 7, 2022 at 6:32PM UTC

File size:15.27 MB

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Khan Academy 7.5.1

Version:7.5.1

Uploaded:May 6, 2022 at 5:30AM UTC

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Khan Academy 7.5.0
April 21, 2022

Version:7.5.0

Uploaded:April 21, 2022 at 9:11PM UTC

File size:40.7 MB

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Khan Academy 7.4.0
December 14, 2021

Version:7.4.0

Uploaded:December 14, 2021 at 4:40PM UTC

File size:14.74 MB

Downloads:258

Khan Academy 7.3.3
October 21, 2021

Version:7.3.3

Uploaded:October 21, 2021 at 2:03PM UTC

File size:21.13 MB

Downloads:150

Khan Academy 7.3.2

Version:7.3.2

Uploaded:May 8, 2021 at 12:16AM UTC

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Khan Academy 7.3.1

Version:7.3.1

Uploaded:April 21, 2021 at 1:18AM UTC

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Khan Academy 7.2.0
December 16, 2020

Version:7.2.0

Uploaded:December 16, 2020 at 10:52PM UTC

File size:22.34 MB

Downloads:356

Khan Academy 7.1.0
October 10, 2020

Version:7.1.0

Uploaded:October 10, 2020 at 1:19AM UTC

File size:22.08 MB

Downloads:198

Khan Academy 7.0.2

Version:7.0.2

Uploaded:July 20, 2020 at 8:52PM UTC

File size:24.23 MB

Downloads:398

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