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Hazmat Class B4 Exam Prep JP Downloads & RevenueHazmat Class B4 Exam Prep JP · App Store

危険物取扱者 乙種4類 試験対策 問題集

Not in any tracked top chart right now.

Updated 11 Nov 2026 · rankings refresh through the day

DeveloperRyouhei Azuma
CategoryBusiness
PriceFree
Released
Rating★ 0.0 (0)
Version1.1
Age rating4+
First seen by us 22 Oct 2026
View on the App Store ↗

Hazmat Class B4 Exam Prep JP update history & changes

Last change · 4 events since 23 Jun 2026Full timeline ↓
📈Dropped out of every chart we track🆕First spotted by AppInsider📦Version 1.1🆕Released on the App Store
Full timeline · 4 events
  2. 📈
    Hazmat Class B4 Exam Prep JP dropped out of every chart we track
    Last seen 2 Nov
  4. 🆕
    Hazmat Class B4 Exam Prep JP first spotted by AppInsider
    #72 in Top Free · Magazines & Newspapers · Japan
  6. 📦
    Hazmat Class B4 Exam Prep JP version 1.1
    Minor fixes.
  8. 🆕
    Hazmat Class B4 Exam Prep JP released on the App Store

Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.

Rating
0.0 ★
0 ratings
Measured

Hazmat Class B4 Exam Prep JP on the App Store

App details

App ID
6782099051
Publisher
Ryouhei Azuma
On the store since
Jun 2026
Under a year
Minimum OS
iOS 16+
iPhone 8 and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
1
EN
Size
16 MB
Also listed in
Magazines & Newspapers