Sealore 船舶免許 学科試験対策

nano-invitation

Contains adsIn-app purchases

About this app

This app is designed to help you prepare for the written exam for small boat operator licenses (Class 2, Class 1, Special, and Lake/River Low-Power Limited).

It covers all four categories, from Class 2 to Class 1, as well as Special and Lake/River Low-Power Limited licenses, all in one app.

It includes comprehensive practice questions and mock exams for those aiming to obtain a boat or jet ski license.

【Recommended for those who:】
・Aim to obtain a Class 2/Class 1 Small Vessel Operator's License
・Want to obtain a Jet Ski (Special Small Vessel Operator) License
・Want to prepare for the written exam through self-study or by taking the national exam (practical training only)
・Want to practice problems in their spare time while attending a school

【Supports all 4 categories】
・Class 2 Small Vessel Operator (50 questions, 70 minutes)
・Class 1 Small Vessel Operator (64 questions, 140 minutes, including Advanced Operation I & II)
・Special Small Vessel Operator/Jet Ski (40 questions, 50 minutes)
・Lake/River Low-Power Limited (30 questions, 30 minutes, true/false)
By selecting the category you wish to take, you can study only the scope of questions for that category.

【Main Features】

■ 440 included questions
Includes original questions aligned with the scope of the Small Vessel Operator's written exam (Principles and Compliance Matters for Small Vessel Operators, Traffic Rules, Operation, Advanced Operation I/II). All questions include a subject ID and detailed explanation.

■ Reliability Labels
Transparent disclosure of factual verification status using "Verified" and "Needs Verification" labels.
Provides an honest learning experience.

■ Mock Exam Mode
Measure your abilities with the same number of questions and time limit as the actual exam (multiple choice, true/false for Kokawa).
See the passing score (65%) and subject-specific correct answer rates at a glance.

■ Review Function
- Incorrect answers are automatically recorded.
- Save questions you want to remember with bookmarks (free and unlimited).

■ Progress Dashboard
- Consecutive study days
- Subject-specific correct answer rate and learning coverage
Designed to encourage continued learning with a quiet sense of accomplishment.

■ Study Plan
Set your exam date, and the remaining days will automatically count down.
Set a daily target number of questions to study systematically.

■ Study Reminder
Receive notifications at your daily study time (can be turned on/off in settings).

【Premium】

The free version allows you to practice the first 25% (112 questions) of each subject.

You can unlock an additional 10 questions by watching ads, and you can re-solve unlocked questions anytime (up to 3 times a day).

Subject-specific practice, bookmarks, and the basic dashboard are also free (mock exams are limited to 2 times per month).

Premium offers even more:

• All 400 questions included

• Unlimited mock exams

• Weakness review (re-solve all incorrect questions at once)

• Detailed analysis (subject-specific coverage)

• No ads

• One-time purchase: ¥1,980 (one-time payment, no auto-renewal)

• Monthly fee: ¥480

• The monthly fee will be charged to the purchasing account and will automatically renew unless canceled at least 24 hours before the end of the period.

• You can cancel anytime from "Google Play > Payments and subscriptions > Subscriptions".


* Terms of Use: https://www.nano-invitation.com/apps/sealore/terms
* Privacy Policy: https://www.nano-invitation.com/apps/sealore/privacy

[Note]

This app does not guarantee passing the exam.

Refunds after purchase can be requested through Google Play Help (refund request).

The included questions are original questions created by us, based on the scope of questions and sample questions published by the Ministry of Land, Infrastructure, Transport and Tourism, the Japan Marine Leisure Safety and Promotion Association (JMRA), etc.

In September 2026, all questions were revised to match the format of the actual exam ("Which is incorrect?" format and calculation problems).

Please check official information for the latest exam system and application procedures.

【Contact Us】

Contact Us: https://www.nano-invitation.com/contact
Privacy Policy: https://www.nano-invitation.com/apps/sealore/privacy
Terms of Service: https://www.nano-invitation.com/apps/sealore/terms

What’s new

小型船舶操縦士(二級・一級・特殊・湖川小出力限定)の学科試験対策アプリです。
二級から一級、水上バイクの特殊、湖川小出力限定まで、全4区分に1本で対応。
ボート免許・水上バイク免許の取得を目指す方のための、本格的な問題演習と模擬試験を収録しています。