ブックオフ公式アプリ ポイントやクーポンをスマホで管理 is a lifestyle app by BOOKOFF Corporation Ltd. with 1,000,000+ downloads (about 4.3M estimated). +12K installs in the last 7 days. Install growth, rank history, SDKs and ad networks.
From the store listing: “New app members who register and log in for the first time will receive:
◆◆100 points to use immediately!◆◆
The 29th of every month is "Book Day"!
◆◆App member-exclusive coupons available for use at your favorite stores!◆◆
Buy and sell used books, manga, games, used clothing, figures, trading cards, and more with the…”