Only the current version so far — new entries appear as the app ships updates.
ITパスポート試験対策:Steady IT Study is an education app by SteadyITStudy with 500+ downloads (about 614 estimated). +6 installs in the last 7 days. Install growth, rank history, SDKs and ad networks.
From the store listing: “Prepare for the IT passport exam with unique characters! Easy to use, perfect for studying in your spare time♪ Learn basic IT knowledge in a fun way!”