In total Coursera offers more than 600 different courses organized into 20 areas of study, and you can sign up for any of them with just a tap to the screen. From the moment you sign up, you'll receive notifications from that course, and you can even stream virtual classes from your Android.
The Coursera app itself includes a download manager, which lets you organize all the content from the different classes you're in. Even though the app is exclusively in English, you can find courses in more than 12 different languages, including Russian, Spanish, Italian, and German.
Coursera is an essential tool for users of the eponymous website. It lets you stay up to date on everything happening in the different courses you're subscribed to.
Requires Android 4.0 or higher