Hazmat Type 4 Exam Prep JP icon

Hazmat Type 4 Exam Prep JP

razuma

⬇ 10+ downloads

Est. actual: 38

Free

Released: Jun 5, 2026

No in-app purchases

Contains ads

Signals

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

📈Last 7 days +3 installs — 200% faster than the week before (+1) · 0/day since Oct 9
🏆Among Business apps top 41% by installs gained this week (1355 peers growing)
🛠Updates actively updated · updated yesterday · every ~122 days (2 updates tracked)

Installs since launch

+8 installs since Oct 9

Update history

1.2 Nov 12, 2026

- Fixed the quiz going back to question 1 after switching apps and returning<br>- Fixed the "Continue" position sometimes being lost<br>- Updated internal libraries

1.1 Jul 13, 2026 · seen Oct 23, 2026

Hazmat Type 4 Exam Prep JP is a business app by razuma with 10+ downloads (about 38 estimated). +3 installs in the last 7 days. Released Jun 5, 2026. Install growth, rank history, SDKs and ad networks.

From the store listing: “Japan Hazardous Materials Class B-4 (Otsu-4) exam prep with explanations”