Education apps in today's App Store charts in the same countries as this app.
AnkiMobile Flashcards
Anki Software, LLC
GENKI Kanji for 3rd Ed.
The Japan Times Publishing, Ltd.
Thinkrolls 2: Puzzles For Kids
AVOKIDDO
Duolingo: Language & Chess
Duolingo
Inovar Sige
Inovar +AZ, Sistemas de Informacao Lda