Only the current version so far — new entries appear as the app ships updates.
【体験版】クレーン・デリック運転士「30日合格プログラム」 is an education app by ReCorrect Inc. with 100+ downloads (about 405 estimated). Released Aug 14, 2022. Install growth, rank history, SDKs and ad networks.
From the store listing: “[No limitation / Crane limitation] A full-fledged learning app for crane and derrick operators! Equipped with an efficient study schedule and mock exams that change questions every time! No reference book needed”
