Only the current version so far — new entries appear as the app ships updates.
保育士試験 最短合格サポート is an education app by ReCorrect Inc. with 100+ downloads (about 437 estimated). Released Aug 1, 2018. Install growth, rank history, SDKs and ad networks.
From the store listing: “A full-fledged learning app for passing the nursery teacher exam. Contains about 500 past questions and prediction questions. * There is also a free trial version, so please try it.”