潜水士 過去問攻略 - 資格ナビULTRA Android

潜水士 過去問攻略 - 資格ナビULTRA

By: Oka App
"Master past diver certification exam questions! Randomly selected questions from the four major subjects, 50 practice questions, and detailed explanations for a first-time pass!"

Overview

Google Play Store
Downloads
-
Data as of 2026-08-04
Version:
1.1
Last updated: 2026-07-19
Ranking
#3,038,796 ▲
Overall

Features & Capabilities

The ultimate past exam question study app for those aiming to pass the National Diver's License Examination!

【App Features】
■ Completely covers all 4 subjects of the national examination!
- Diving Operations (Diving Methods, Currents, Underwater Physics, etc.)
- Air Supply and Diving Equipment (Scuba and Helmet Diving Structure and Maintenance)
- High-Pressure Disorders (Decompression Sickness, Nitrogen Narcosis, First Aid)
- Relevant Laws and Regulations (High-Pressure Regulations, Industrial Safety and Health Act)
■ Equipped with a "Comprehensive Mock Exam (50 Questions)" mode designed to simulate the actual exam!
- 50 questions are randomly selected and shuffled from a 52-question quiz database each time.
■ Abundant features to support comfortable learning
- "Weakness Overcoming List" that automatically accumulates incorrect answers
- "Bookmark (★)" to pin questions you want to review later
- Satisfying sound effects for correct answers and a premium deep-sea dark mode that is easy on the eyes

With an intuitive and beautiful design inspired by the deep sea, you can quickly study during your free time. Achieve your first-time pass via the shortest route with Shikaku Navi ULTRA!

User Growth & Download Statistics

App
By:
Oka
Downloads:
-
Version:
1.1 Last updated: 2026-07-19
Version code:
2
Creation date:
2026-07-12
Publisher country:
JP JP
Permissions:
  • android.permission.RECORD_AUDIO Very high risk
  • com.google.android.gms.permission.AD_ID Moderate risk
  • android.permission.ACCESS_ADSERVICES_AD_ID Low risk
  • android.permission.ACCESS_ADSERVICES_ATTRIBUTION Low risk
  • android.permission.ACCESS_ADSERVICES_TOPICS Low risk
  • android.permission.FOREGROUND_SERVICE Low risk
  • android.permission.INTERNET Low risk
  • android.permission.MODIFY_AUDIO_SETTINGS Low risk
  • android.permission.WAKE_LOCK Low risk
  • android.permission.ACCESS_NETWORK_STATE Safe
    • See more
Size:
24.64MB
Email:
im*****@gmail.com
URLs:
Privacy policy
Full description:
See detailed description
Source:
Google Play Store
Data ingested on:
2026-08-04
Compare stats and ranking:

Ranking

# 3,038,796 ▲

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Android app. Please use these information below to contact the Android app developer.
Developed by:
Oka
Google Play Store
https://play.google.com/store/apps/details?id=sennsuisi.akabeko
Email:
im*****@gmail.com

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