Only the current version so far — new entries appear as the app ships updates.
新刊ウォッチ－漫画・コミックの発売日お知らせ・検索アプリ is a comics app by Stray Cat Lab. with 5,000+ downloads (about 9.8K estimated). Install growth, rank history, SDKs and ad networks.
From the store listing: “It is a stylish application that easily registers manga and comics and informs you of the new release date. You can easily search for new encounters, comics and author names that interest you from the list of new publications!”
