| App | Category | Revenue ($M) | Users (M) | Launch Date | |
|---|---|---|---|---|---|
 |
Memrise | Education | 18.5 | 2 | September, 2008 |
 |
Duolingo | Education | 748 | 103 | June, 2012 |
 |
Chegg | Education | 616 | 6.6 | December, 2007 |
 |
Busuu | Education | 39 | 1.5 | January, 2008 |
 |
Babbel | Education | 170 | 10 | January, 2008 |
App Statistics
Revenue, usage and install metrics for the most popular apps
