夜の暗記ラボ - 英単語・英熟語の暗記アプリ is an education app by tetomo with 0+ downloads. Install growth, rank history, SDKs and ad networks.
From the store listing: “Learn English vocabulary and idioms in 5 minutes before bed. Memorize 12,500 words from 27 books for Eiken, TOEIC, and university entrance exams using multiple-choice questions and a red sheet.”