一級ボイラーマスター
A one-time purchase app for studying for the Class 1 Boiler Technician exam, featuring 540 questions, 15 questions daily, 40 practice questions, diagrams, and calculation formulas.
- Total installs
- 0
- Installs / day
- 0
- Rating
- —★
- Released
- 31 Aug 2026
- Last update
- 10 Oct 2026
- Countries
- —
Install history
exact counter from Google PlayInstalls per day · last 90 days
Change timeline
No changes recorded yet. We compare every crawl with the previous one and list title, icon, screenshots, description, version, price and availability changes here.
Country availability
Availability has not been checked for this app yet. “Check all countries” looks the app up in about 140 Google Play storefronts and shows where it is live, listed but not installable, or missing — plus any country-specific (custom) store listings.
Top countries
We estimate where downloads come from using the app’s position in Google Play’s top charts in about 140 countries. This app is not in any chart we have collected yet; the estimate appears as soon as it is.
Top chart positions
Not in any tracked top chart.
App manifest
Read this app's manifest from Google Play: permissions, declared SDKs, components and AdMob app ID. Saved analysis appears here automatically.
Data safety
declared by the developer on Google Play- No data shared with third parties
- No data collected
This is the developer's own declaration, summarised from the Play listing. The permissions below show what the app is technically able to access.
Permissions
8 in 3 groupsWhat this app can do with your phone
- Read photos, videos, and other files saved in your phone's shared storage
- Add, change or delete photos, videos and other files in your phone's storage
- Show its own windows or bubbles on top of other apps you are using
Photos/Media/FilesSensitive2
Access to photos, videos, music and other files stored on your device
- Read photos, videos, and other files saved in your phone's shared storageread the contents of your USB storage ·
READ_EXTERNAL_STORAGE - Add, change or delete photos, videos and other files in your phone's storagemodify or delete the contents of your USB storage ·
WRITE_EXTERNAL_STORAGE
StorageSensitive2
Access to files, photos and media saved on your phone's storage
- Read photos, videos, and other files saved in your phone's shared storageread the contents of your USB storage ·
READ_EXTERNAL_STORAGE - Add, change or delete photos, videos and other files in your phone's storagemodify or delete the contents of your USB storage ·
WRITE_EXTERNAL_STORAGE
OtherSensitive4
Access to miscellaneous device features that don't fit other categories
- Show its own windows or bubbles on top of other apps you are usingdraw over other apps ·
SYSTEM_ALERT_WINDOW - Connect to the internet to load content and send datafull network access ·
INTERNET - Make your phone vibratecontrol vibration ·
VIBRATE - Check with Google Play that you got this app legitimatelyGoogle Play license check ·
com.android.vending.CHECK_LICENSE
Sensitive = can reach personal data, location, camera/mic or act on your behalf. Notable = changes how your device behaves. Routine = normal for almost every app. Source: Google Play's permission list for all versions of this app.
Store listing
Full description
What's new
令和8年10月掲載の公式問題40問を追加し、全540問に更新しました。 教材画面の詳細ポップアップをスクロールできるよう改善しました。 表示と安定性を改善しました。
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