Only the current version so far — new entries appear as the app ships updates.
英文法 並べ替え中学1年 is an education app by SyuwaGakuin with 50,000+ downloads (about 70K estimated). +17 installs in the last 7 days. Released Nov 29, 2017. Install growth, rank history, SDKs and ad networks.
From the store listing: “Perfect for textbooks of junior high school one year, sorting problem of English grammar”