Master-Nav: Colregs

Name: Master-Nav: Colregs
Rating: 4.483871 (260 reviews)
Author: NAB DEV

By: NAB DEV

COLREGS: Learn it. Remember it. Pass it. Master Navigation Rules - the easy way!

Features & Capabilities

Master-Nav is a user-friendly Chrome extension designed to make learning the International Regulations for Preventing Collisions at Sea (COLREGS) straightforward and effective. It uses interactive visuals, memory aids, and exam-focused answer phrases to help users understand and memorize maritime rules without the need to read dense rule books.

The extension offers a structured Learning Section to guide users step-by-step through COLREGS Parts A to D (Rules 1-37) and distress signals in Annex IV. The Practice Section features over 1,000 varied questions, each with clear graphic answers highlighting common errors to reinforce rule retention. With a convenient Rule button granting quick access to relevant COLREGS rules, simplifying navigation and saving study time.

Ideal for cadets and experienced mariners alike, Master-Nav promotes an engaging and painless way to master maritime regulations, ensuring better preparation for certifications and safer navigation at sea.

User Growth & Download Statistics

App Education Navigation & Mapping

By:

NAB DEV

Downloads:

31,411 175

Rating:

4.48

(260) 3 new ratings

Version:

M_N5.3 Last updated: 2026-04-14

Version code:

186

Creation date:

2023-05-26

Publisher country:

Permissions:

com.google.android.gms.permission.AD_ID Moderate risk
android.permission.FOREGROUND_SERVICE Low risk
android.permission.INTERNET Low risk
android.permission.RECEIVE_BOOT_COMPLETED Low risk
android.permission.WAKE_LOCK Low risk
com.android.vending.BILLING Low risk
android.permission.ACCESS_NETWORK_STATE Safe
com.android.vending.CHECK_LICENSE Safe
com.pjccappdev.master_nav.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

Size:

30.95MB

Email:

na*****@gmail.com

URLs:

Website ,Privacy policy

Full description:

Source:

Google Play Store

Data ingested on:

2026-06-04

Compare stats and ranking:

Ranking

# 350,978 ▼ 858

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:

NAB DEV

Google Play Store

https://play.google.com/store/apps/details?id=com.pjccappdev.master_nav

Email:

na*****@gmail.com

Website:

https://master-nav.website/

User Reviews

Master-Nav: Colregs is widely praised for its effective teaching methods, including illustrations, mnemonics, and interactive quizzes that make learning maritime navigation rules easier and more enjoyable. The app is a valuable resource for both students and professional mariners preparing for exams. Some users reported problems with premium purchase processing and occasional display issues in questions. Overall, it offers a comprehensive and user-friendly way to learn COLREGs, with free access featuring some ads that users find acceptable or wish to remove.

Pros

Effective tool for learning and memorizing COLREGs with clear explanations and illustrations
Interactive quizzes and questions help reinforce learning and exam preparation
Useful for both professional mariners and students studying maritime rules
User-friendly and easy to navigate
Free version offers substantial content with manageable ads

Cons