危険物乙4 過去問・問題集

Name: 危険物乙4 過去問・問題集
Author: Naoto Baba

Naoto Baba

⬇ 100+ downloads

Est. actual: 159

Free

Released: May 6, 2026

IAP: $1.49 - $10.99 per item

Contains ads

Rated: Everyone

Signals

4 this week · 2 positive · 1 warning All of this week's signals →

📈Last 7 days +35 installs · 2/day since Oct 5
🏆Among Education apps top 15% by installs gained this week (1860 peers growing)
🛠Updates dormant · updated 159 days ago
🔁Ownership moved between accounts of the same company, from APP LLCN to Naoto Baba · Nov 5, 2026

Installs since launch

+55 installs since Oct 5

Update history

1.0.4 Jun 7, 2026 · seen Oct 5, 2026

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

危険物乙4 過去問・問題集 is an education app by Naoto Baba with 100+ downloads (about 159 estimated). +35 installs in the last 7 days. Released May 6, 2026. Install growth, rank history, SDKs and ad networks.

From the store listing: “■ Important Notice (Operator Information & Official Information Sources) This app is an independent learning support app with no affiliation, affiliation, or authorization from the Fire and Disaster Management Agency of the Ministry of Internal Affairs and Communications (the supervising government agency), or any…”