Otsu-4 Anki Club: Kiken-butsu
iOS app by 丽佳 施. Lifestyle · 丽佳 施
- Store rating
- 0 / 5
- Store rating count
- 0
- Download price
- Free to download
- In-app purchases
- Unknown
- Version
- 1.0.1
- Listing last refreshed
- 2026-09-08
View the original store listing
Store description excerpt
The Otsu-4 (乙4) hazardous-materials handler exam trainer for Japan — the license that raises hourly wages at gas stations and warehouses across Japan. • 911 original drill questions with explanations (regulations / physics & chemistry / properties & firefighting) — real count, no inflated numbers • 26 original Japanese mnemonics (goro) for designated quantities and key facts • Full-format mock exam: 35 questions, 2-hour timer, graded with the real rule — 60% or better in every subject • Leitner spaced repetition brings back exactly what you were about to forget • Reference table of 30 Class-4 substances: quantities, flash points, solubility, extinguishing agents • Study features work fully offline, including in airplane mode — no account or internet needed to learn A banner appears at the bottom of the screen, and a full-screen ad may appear at natural breaks. An optional one-time "Remove Ads" purchase hides both. Note: exam content is in Japanese (the exam itself is administered in Japanese). Original study material, not a copy of any commercial past-question book. Interface available in English, Japanese and Simplified Chinese.
Review coverage
AppRill has captured 0 reviews for this app. This is a collected sample, separate from the store rating count. Latest review capture: Not captured yet.
Recent captured chart positions
No chart positions have been captured for this app yet.
Chart position, rating count and review coverage do not establish downloads, revenue or profit. Understand the differences.