Khan Academy allows you to learn almost anything for free. Our iOS app is the best way to view Khan Academy’s complete library of over 4,200 videos. We cover a massive number of science topics such as biology, chemistry, and physics, and even the humanities with playlists on finance and history.

 

Included in our iPhone and iPad apps:

- Watch all of our 4,200+ videos

- Track your progress: Log in with your Khan Academy user account to get credit for watching videos, and see your achievements

 

Also included in our iPad app:

- Downloadable videos: take individual videos or entire playlists to watch offline at your own pace

- Subtitles: follow along, skip ahead, or go back by navigating through subtitles