About this app
危険物取扱者 乙種第4類の合格を目指す学習アプリです。 主な機能: - 一問一答 OXドリル - 5択予想問題 - 実戦35問模擬 - 誤答復習・お気に入り管理 - 学習統計と苦手トピック分析 - 音声での復習学習 法令・物理化学・性質消火の3科目を、基礎から実戦まで段階的に学べる構成で、毎日の継続学習をしっかり支えます。
Audience growth
Ratings growth
7-day gain
+0
Ratings / day
0.0
30-day gain
+0
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
Current
Free
Historical low
Free
Paid → free
0×
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Sep 3, 2026 · 2:14 AM Free
Screenshots
