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...
Latest public release information from the App Store.
Version 8.4.1 update
Feb 24, 2026∙ Bug fixes and performance improvements.
First App Store release
Mar 11, 2012Original public release date for this app listing.
Automatic peer set, competitor apps, and comparison signals.
Full Access Required
Competitor snapshot & peer comparison
to continue