危険物取扱者乙4｜解説付き問題集｜トレ速【危険物乙４】

Name: 危険物取扱者 乙4｜解説付き問題集｜トレ速【危険物乙４】
Author: YUMELABO, K.K.

YUMELABO, K.K.

⬇ 1,000+ downloads

Est. actual: 2,804

Free

No in-app purchases

No ads

Signals

3 this week · 2 positive All of this week's signals →

📈Last 7 days +108 installs — 46% faster than the week before (+74) · 9/day since Oct 9
🏆Among Education apps top 3% by installs gained this week (989 peers growing)
🛠Updates quiet · updated 32 days ago

Installs since launch

+272 installs since Oct 9

Update history

3.2.0 Oct 14, 2026 · seen Oct 19, 2026

UIを一部修正しました。

Only the current version so far — new entries appear as the app ships updates.

危険物取扱者乙4｜解説付き問題集｜トレ速【危険物乙４】 is an education app by YUMELABO, K.K. with 1,000+ downloads (about 2.8K estimated). +108 installs in the last 7 days. Install growth, rank history, SDKs and ad networks.

From the store listing: “This is an exam preparation app for those who want to pass the Class 4 Hazardous Materials Handling Examination in a short period of time. It contains 600 questions (one question, one answer) with detailed explanations. You can use your spare time to aim for passing efficiently!”

危険物取扱者 乙4｜解説付き問題集｜トレ速【危険物乙４】

Signals

危険物取扱者乙4｜解説付き問題集｜トレ速【危険物乙４】