Tokyo Marina Boat License Exam

LiveApart Sharing8 apps · 233.6K installsEducationFreeIn-app purchases: $1.49 - $21.99 per itemcom.tokyomarina.app

Real past questions for Japan's boat license exam. Cheaper than one retake

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Total installs
28
exact · Play shows 10+
Installs / day
0
7-day avg · last day 0
Rating
—★
— ratings · — reviews
Released
25 Jun 2026
4mo ago
Last update
12 Oct 2026
v1.0.6 · 2d ago
Countries
—
not checked yet

Installs per day

gain of the exact counter
01234511 Oct13 Oct14 Oct

Daily tracking since 10 Oct 2026 · history grows every day

Install history

exact counter from Google Play
27282910 Oct12 Oct14 Oct
05101520253025 Jun10 Oct14 Oct

Dashed: estimate from the release date (no daily data before 10 Oct 2026) · time axis compressed before that day

Daily tracking since 10 Oct 2026 · history grows every day

Change timeline

7 changesFull history
  1. Update date
    10 Aug 202612 Oct 2026
  2. Version
    1.0.5 → 1.0.6
  3. What's new
    Repair payment flowOn the real JMRA exam you can score 65% and still fail if one subject is below half. Tokyo Marina now scores mock exams the same way and shows each subject's score, so you know what to study before exam day. Mistakes pra…
  4. Description
    One retake of the real exam costs more than this app. Tokyo Marina prepares you for Japan's small-boat operator license exam (Class 1 and Class 2). The app contains 1,217 real questions from past exams, in the same form…Retaking the written exam costs ¥4,850 for Class 2 and ¥10,000 for Class 1. Full access to Tokyo Marina is a one-time ¥3,500. Tokyo Marina prepares you for the written exam of Japan's small boat operator license (Class …
  5. Screenshots
    4 screenshots6 screenshots
  6. Feature graphic
    previousnew
  7. Icon
    previousnew

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.

Manifest analysis reads only the required APK ranges. Base APK downloads may need separate device splits to install.

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

3 in 1 group
0 Sensitive0 Notable3 Routine
OtherRoutine3

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

  • 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

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
Retaking the written exam costs ¥4,850 for Class 2 and ¥10,000 for Class 1. Full access to Tokyo Marina is a one-time ¥3,500. Tokyo Marina prepares you for the written exam of Japan's small boat operator license (Class 1 and Class 2). The app has more than 1,150 questions, including questions from past exams, in the same format and time limit as the real test. When we compared the app with an actual exam paper, 48 of its 50 Common questions were in the app. SCORED BY THE JMRA PASS RULE To pass the real exam, you need 65% overall and at least half of the questions right in every subject. Even 80% overall fails if one subject is below half. Tokyo Marina checks both and shows your score for each subject, so you know which part to study before exam day. PRACTICE ONLY YOUR MISTAKES Mistakes practice builds a test from the questions you got wrong last time. Each question leaves the list once you answer it correctly. Included in full access. AN EXPLANATION FOR EVERY QUESTION • Every mock exam is scored as soon as you finish • Each question shows the correct answer and a short explanation of why it is right • The result screen can show only your mistakes THE SAME FORMAT AS ON EXAM DAY • Four-option questions with the original figures, a timer and an answer sheet • The Common subjects (operator duties and compliance, rules of the road, navigation) for Class 2, plus the Advanced subjects (Advanced Navigation I and II) for Class 1 • Mark questions you want to come back to, the same way you would on the paper • Tap a figure to open it full screen STUDY IN YOUR LANGUAGE Japanese, English, 中文, Русский, हिन्दी, Español, ไทย, Tiếng Việt, العربية, Українська, Türkçe, Français. Japanese and English are free, and the other ten languages unlock with full access. Check the meaning in your language, then practice in Japanese or English, the languages the exam is held in. WHY PRACTICE IS CHEAPER THAN RETAKING If you fail, you pay the exam fee again, travel to the test site again and wait for the next exam date. For less than one retake you get unlimited practice until your scores are stable. WHO THE APP IS FOR • Anyone preparing for the Class 1 or Class 2 small boat operator license • People who study on their own and do not want to pay around ¥100,000 for a classroom course • Non-Japanese speakers who want to check the meaning in their own language PRICING • First full mock exam: free after sign-up • One extra exam: ¥250 • Full access: one-time ¥3,500. Every subject, every language, mistakes practice, unlimited exams. No subscription 14 single exams cost the same as full access. Take the free mock exam and see how close you are to a passing score. On iPhone and computers you can also use the browser version at https://tokyo-marina.japonarium.com/en Tokyo Marina is an independent study app and is not affiliated with the Japan Marine Recreation Association (JMRA).

What's new

On the real JMRA exam you can score 65% and still fail if one subject is below half. Tokyo Marina now scores mock exams the same way and shows each subject's score, so you know what to study before exam day. Mistakes practice: retake only the questions you got wrong until you get them right. Included in full access. You can also mark questions to review and see only your mistakes on the result screen.

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