Report updated May 4, 2026

Overview · Full Intel report in progress

COLREG 72: safety at sea is an established education app that is completely free. With a 4.8/5 rating from 3.2K reviews, it shows polarized user reception.

What is COLREG 72: safety at sea?

COLREG 72 is an educational reference tool designed to help maritime professionals and students master the International Regulations for Preventing Collisions at Sea. The app integrates the full text of all 72 rules with interactive study aids, including navigation light quizzes and timed mock exams.

Current Momentum

v2.6

Exam Mode Sit a full mock exam right inside the app — timed questions across all the rules, with a final score, a complete mistake review, and a comment on every wrong answer so you understand the reasoning, not just the result. Built for iPad The rules grid now fits more cards on a single screen, and an animated swipe hint guides you through the quiz — studying on a larger display feels properly native. Polish and Fixes Refined theory reader and rules list, more thorough localization across lights, sound signals, and theory, and more reliable offline content sync.

AI-powered deep analysis surfacing high-signal insights. Still in beta, accuracy improves daily. For informational purposes only.

Competition

Rivals identification in progress

7-Day Rank Pulse 🇺🇸

Education
#98
NEW

Rating Pulse 🇺🇸

What makes this app unique?

What Does It Look Like?

How Is The App's Momentum Right Now?

Loading...

What Are The Key Features?

Comprehensive Rule ReferenceStandard

Provides the full text of all 72 COLREG rules and Annexes I through IV.

Interactive Learning ToolsStandard

Features navigation lights identification quizzes and rule-based tests with detailed answer explanations.

Exam ModeStandard

Offers a timed mock exam environment with a final score summary and a comprehensive mistake review.

Contextual Cross-ReferencingStandard

Links quiz questions and hints directly to relevant theory sections via popup overlays for immediate study.

Progress TrackingStandard

Monitors read theory sections to help users track their study progress and identify remaining topics.

How much does it cost?

Free

Who Built It?

Smirnov Yury app icon 1
Smirnov Yury app icon 2
Smirnov Yury app icon 3
Smirnov Yury app icon 4

Smirnov Yury

(628)

Providing specialized maritime training and certification tools for professional seafarers. Also offers a digital puzzle platform for casual users.

Portfolio

7

Apps

Free 1Paid 5
Education83%
Games17%

Who is Smirnov Yury?

The publisher maintains a bifurcated strategy, balancing a niche, high-utility B2B2C focus on maritime regulatory compliance with a secondary, unrelated consumer gaming vertical. Their maritime portfolio functions as a digital textbook and exam-prep suite, leveraging the technical nature of international shipping regulations to build a defensible, specialized user base. The primary strategic tension lies in the lack of synergy between their professional maritime tools and their casual puzzle gaming app, suggesting a portfolio built on opportunistic development rather than a unified product ecosystem.

Who is Smirnov Yury for?

  • Maritime students
  • Merchant navy officers
  • Yacht captains preparing for certification
  • Alongside casual puzzle enthusiasts
Intense

Portfolio momentum

Released 12 updates across 7 apps in the last 6 months, indicating a high level of ongoing maintenance and development activity.

Last release · 0d agoActive apps · 3Abandoned · 2

Analysis in progress, available soon

What do users think recently?

Analysis in progress, available soon

Analysis in progress, available soon

What is the competitive landscape for COLREG 72: safety at sea?

How's The Education Market?

How does it evolve in the Education market?

ChartRankChange
iOSPaid#2
iOSPaid#269

Strategic analysis coming soon

SWOT, key takeaways & outlook

The outtake for COLREG 72: safety at sea

Key Takeaways

This app serves as a specialized, integrated study platform that links regulatory text directly to practical exam preparation tools.

Where Is It Heading?

Trend analysis

Available very soon

Disclosure

Independent intel to help builders create better apps.

AI-powered analysis with editorial review, built from publicly available sources. See methodology.

Marlvel.ai is not affiliated with, endorsed by, or sponsored by COLREG 72: safety at sea, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Hope this helps & keep building! · Found an error?

What's new in this report

No changes detected yet.

Cite this report

Marlvel.ai. “COLREG 72: safety at sea Intelligence Report.” Updated May 4, 2026. https://marlvel.ai/intel-report/education/edu-smirnovyury-engvessellights

Agent Markdown (.md)·

Data licensed under CC-BY-NC 4.0