Only the current version so far — new entries appear as the app ships updates.
2級ボイラー技士 公表問題760問と練習問題 is an education app by StackWorks LLC with 1+ downloads (about 1 estimated). +1 installs in the last 7 days. Install growth, rank history, SDKs and ad networks.
From the store listing: “This book includes explanations for all 760 questions from 19 publicly released exams and 398 practice questions. It also comes with true/false drills, flashcards, and a summary notebook.”
