Only the current version so far — new entries appear as the app ships updates.
消防設備士 乙6試験対策アプリ2026乙種第6類 予想問題集 is an education app by attractive.app with 10,000+ downloads (about 13K estimated). +12 installs in the last 7 days. Released Nov 13, 2020. Install growth, rank history, SDKs and ad networks.
From the store listing: “This is a study app for the 2026 Fire Protection Equipment Technician Class B, Category 6 exam. It allows for efficient learning using a question format similar to the actual exam.”