Key numbers
5M+Installs
4.7 / 163KRating
Aug 31, 2015Released
Sep 21, 2026Updated
Chart positions by country
In 3 countries, 3 charts, best position #9 (snapshot Oct 23, 2026).
| Country | Chart | Rank |
|---|---|---|
| Russia | Education · free | #9 |
| Belarus | Education · free | #88 |
| Kazakhstan | Education · free | #128 |
Markets where it is offered
Offered in 242 countries: effectively worldwide.
