Class 3 Refrigeration Exam JP

Name: Class 3 Refrigeration Exam JP
Author: razuma

Liverazuma204 apps · 1.6M installsBusinessFree · contains adsjp.razuma.reitou3study

Study for Japan Class 3 Refrigeration Engineer exam with Q&A, offline

Alert me ★ Watch Open in Play ↗

Total installs: 111
Installs / day: 0
Rating: —★
Released: 18 Jun 2026
Last update: 14 Jul 2026
Countries: —

Installs per day

gain of the exact counter

12 Oct 2026No change in the counterOur first day-to-day reading of the counter. The line starts with the next one.

Daily tracking since 11 Oct 2026 · history grows every day

Install history

exact counter from Google Play

1dAll

Dashed: estimate from the release date (no daily data before 11 Oct 2026) · time axis compressed before that day

Daily tracking since 11 Oct 2026 · history grows every day

Change timeline

Full history

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

Country data will be available soon.

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

Shares data with third parties Location, App activity and 2 others
Collects data Location, App activity and 2 others
Data is encrypted in transit
No way to ask for data deletion

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

4 in 1 group

0 Sensitive1 Notable3 Routine

OtherNotable4

Access to miscellaneous device features that don't fit other categories

Keep your phone's processor or screen from going to sleep, which can use more batteryprevent device from sleeping · WAKE_LOCK
Check whether you are online and whether you use Wi-Fi or mobile dataview network connections · ACCESS_NETWORK_STATE
Connect to the internet to load content and send datafull network access · INTERNET
Check with Google Play that you got this app legitimatelyGoogle Play license check · com.android.vending.CHECK_LICENSE

Read more · all 4 permissions Show less

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

Download

Full description

A study app for the Japan Class 3 Refrigeration Machinery Responsible Engineer (第三種冷凍機械責任者) exam. Study efficiently with practice questions and detailed explanations across all subjects. ■ Subjects Covered • Refrigeration Principles and Refrigerants • Refrigeration Equipment (Compressor / Condenser / Evaporator / Expansion Valve) • Auxiliary Devices, Automatic Control and Safety • Operation, Maintenance and Inspection • Laws and Regulations (High Pressure Gas Safety Act) ■ Study Modes • Random practice (10 / 25 / 50 / 100 questions) • Study by subject • All questions in order (resume supported) • Review incorrect answers • Bookmarks and unanswered questions ■ Progress Tracking • Automatic tracking of correct answer rate • Subject-by-subject performance overview Works completely offline — study anytime, anywhere. ■ Reference Source • https://www.khk.or.jp/ (High Pressure Gas Safety Institute of Japan) ※ This app is an independent study tool and is not affiliated with any examination body. Content is based on general exam scope and may differ from the actual exam due to law revisions.

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