Boating First Aid at Sea icon
ColRegs: Nav Lights & Shapes icon
ColRegs: Rules of the Road icon
+11

The Other Hat

For recreational sailors, power boaters, and maritime students seeking certification or quick reference for international and U.S. navigation rules.

14apps3.1(50) Multi-theme

Snapshot

Who is The Other Hat?

Providing specialized digital reference and training tools for recreational and professional mariners. Helping boaters master navigation rules and safety protocols through mobile-first study aids.

Target audience

Recreational sailorsPower boatersMaritime students seeking certification or quick reference for international

Active nemesis

Calculated Industries

Other rivals

Portfolio

Free 1
14
apps
Reference4
Sports4
Education3
Navigation3

Last updated

International Certificate of Competence (ICC)

v5.9.3

7mo ago

Active

Publisher DNA

What defines The Other Hat?

Publisher DNA

Primary focus

Maritime navigation and safety reference tools

Scale

studio

Target audience

Recreational sailors, power boaters, and maritime students seeking certification or quick reference for international and U.S. navigation rules.

Signature Patterns

  • •Heavy reliance on custom illustrations and diagrams to explain complex maritime rules.
  • •Monetization primarily through paid app downloads for reference and study tools.
  • •Content derived from established maritime books and official regulatory syllabi.
  • •Strong focus on offline-first utility for use at sea.
Active

Portfolio momentum

Released 5 updates across the portfolio in the last 6 months, with key navigation and certification titles receiving updates within the last month.

Last release 12d agoActive apps 6Abandoned 6

Portfolio

What does The Other Hat ship?

Apps

14 apps analysed

Single-market publisher, every app ships only to United States.

Based on 3 of 14 apps with localized market data, more coverage rolling in as scans complete · last scanned .

Americas (1)

  • United States3 / 3

Core markets (3/3 apps)

United States

Rivals

Who does The Other Hat compete with?

The rivals identified

Nemeses(6)

Calculated Industries

known forNavigation Rules

2 apps4.8SportsEducation

Both apps target maritime professionals and boaters with identical $3.99 pricing and a shared focus on IRPCS regulatory content.

GEC s.r.l.

known forAqua Map Boating

1 app4.7Navigation

Both apps target mariners requiring nautical chart data, though the rival provides active navigation while the target app functions as a static reference manual.

MARITIME MASTER

known forMaritime Master - Nav Lights

3 apps0.0ReferenceSports

It uses gamified 3D content to teach navigation lights and signals.

US SAILING

known forUS Sailing Bookstore

3 apps3.9Sports

Delivers official US Sailing publications, serving as a digital library for members to access foundational sailing manuals.

Canali-Tech Pte

known forAnchorSafe – Anchor Alarm

1 appNavigation

Both apps target the maritime professional and recreational sailor demographic, competing for limited screen time and utility during nautical operations.

Yapp

known forYapp Sailing Course

2 apps4.2Sports

Both apps target novice sailors seeking foundational knowledge, creating direct competition for the same user base despite different delivery formats.

Contenders(27)

Bist

known fori-Boating: Marine Charts & Gps

2 apps4.5NavigationEducation

i-Boating targets the same recreational boaters and maritime professionals as Nautical Chart Symbols & Abbreviations, but provides active navigation tools rather than just reference material.

FB Imray Laurie Norie & Wilson

known forMarine Chart Symbols

2 apps2.9NavigationSports

It directly competes as a digital reference tool for nautical chart symbols and terminology.

Joseph Kim

known forNautical Rules

1 app5.0SportsEducation

Both apps target maritime navigation students and professionals, competing directly for users seeking IRPCS and USCG rule mastery through study tools and reference materials.

Alejandro

known forMarinus: maritime rules

1 app4.4EducationSports

Both apps target the same maritime navigation training audience and provide IRPCS reference material. Marinus competes directly by offering a broader feature set for free, whereas ColRegs is a paid reference tool.

Angad C

known forSimple Colregs

1 app0.0EducationSports

Both apps target the same maritime navigation regulation study audience and provide offline access to IRPCS rules for exam preparation and on-board reference.

Garmin

known forActiveCaptain®

2 apps4.0Navigation

This app serves as a companion for hardware owners, overlapping with the navigation needs of the source app's audience.

LW Brands

known forNautical Charts & Maps

1 app4.6Navigation

Both apps target the same maritime audience for offline navigation support, though one focuses on reference symbology while the other provides active chart plotting and weather data.

MiraTrex

known forPRO CHARTS - Marine Navigation

1 app4.5Navigation

Both apps target the maritime navigation market, where the rival's navigation tools serve as a functional extension of the reference data provided by the source app.

Navico Norway AS

known forC-MAP: Boating

2 apps4.6Navigation

C-MAP competes for the same recreational boating audience by providing navigation and bathymetry data that overlaps with the reference needs of users who consult nautical charts.

NavX Studios

known foriNavX: Marine Navigation

1 app4.8Navigation

Both apps target the same maritime audience, though iNavX provides active navigation tools while the source app functions as a static reference manual for chart symbols.

Nobeltec

known forTZ iBoat – Marine Navigation

1 app4.7Navigation

Both apps target the maritime navigation segment, with TZ iBoat providing a broader navigation suite that includes the reference data Nautical Chart Symbols & Abbreviations offers as a standalone product.

Ozgur GUNES

known forSeabook Maritime

1 app4.6EducationSports

Both apps target maritime professionals and students for navigation regulation reference, but Seabook provides a broader scope of maritime topics at no cost.

Peterjohn Chisholm

known forMaster-Nav: COLREGS IALA Tests

1 app4.5EducationSports

Both apps target mariners requiring mastery of navigation regulations, with Master-Nav offering free testing modules that directly challenge the paid reference model of ColRegs: Rules of the Road.

Allytech

known forSailing Rules Pocket Guide

1 app5.0Sports

Both apps target sailors needing maritime rule references, creating direct competition for users seeking quick navigation and safety guidance.

American Sailing Association

known forAmerican Sailing +

2 apps4.8Sports

Both apps target novice sailors seeking educational content, creating direct competition for the same user base despite different monetization models.

AT-PT Kft

known forEasy Sail Trim

1 app5.0Sports

Both apps target the sailing education market, with Start Sailing: Yachts providing foundational reference material while Easy Sail Trim focuses on performance tuning and troubleshooting.

Duc Dang

known forKnots: Useful knots for life

1 app1.0Reference

Both apps target users seeking instructional knot-tying guides, with the rival offering a larger library of 100+ knots compared to the 50 knots in Knot Bible.

Jan Merlin Stottmeister

known forSBF - All Knots (Sport boat)

1 app0.0Reference

Both apps target the nautical knot-tying market, with SBF - All Knots capturing the exam-prep segment while Knot Bible focuses on general reference.

Jerome De Watteville

known forMarine Knots Lite

1 app0.0Reference

Both apps target the same nautical knot-tying audience with overlapping instructional content for marine knots.

Kai Mattern

known forMarine Rules of the Road

1 app0.0Education

Both apps target maritime navigation training and exam preparation for seafarers. They compete for the same user base seeking IRPCS regulation mastery.

Lana Banks

known forKnots: Rope Tying Guide

1 app0.0Reference

Both apps provide instructional knot-tying guides for a shared audience of sailors and outdoor enthusiasts, with direct overlap in marine-focused content.

Mintaka Innovations

known forNavRules

1 app4.0Education

Both apps target mariners seeking maritime navigation rule mastery, with ColRegs focusing on reference and NavRules on exam certification.

NauticEd Sailing School

known forNauticEd Sailing

1 app5.0Sports

Both apps target novice sailors seeking foundational knowledge, but they differ in delivery: Start Sailing: Yachts provides a static illustrated reference guide, while NauticEd Sailing offers an interactive course-based curriculum.

nBite

known forThe Racing Rules by Elvstrøm

1 app0.0Sports

Both apps target sailors requiring maritime rule references, creating direct competition for the same user base seeking quick navigation and safety guidance.

Orca Technologies AS

known forOrca: Boat GPS, Charts, Routes

1 app3.9Navigation

Orca competes for the same maritime audience by providing navigation and chart-viewing capabilities, though it targets active boaters while the source app focuses on static symbol reference.

Waterway Guide

known forWaterway Guide

1 app4.7Navigation

Both apps serve mariners requiring navigation information, with Waterway Guide providing broad regional data while the target app focuses on specific IHO-standard symbology.

Zebra Crossing

known forSailing Coach

1 app3.0Sports

Both apps target the sailing community, but they serve distinct needs: static educational reference versus interactive tactical simulation.

Same space(49)

Grog

known forAnimated Knots by Grog

1 app4.8ReferenceSports

Provides a specialized visual reference for knot-tying, serving as a technical supplement to the source app's general sailing content.

KnotSmith

known forKnots Tying Guide: KnotSmith

1 app4.4ReferenceSports

Offers a practical knot-tying guide for outdoor enthusiasts, overlapping with the source app's focus on foundational sailing skills.

Nitin Katrodiya

known forKnot 3D : Learn To Tie Knots

1 app1.7ReferenceSports

Provides 3D-animated knot instructions, though its monetization model creates significant barriers for users compared to the source app.

Nynix

known forKnots 3D

2 apps4.9ReferenceSports

Offers a specialized reference tool for knot-tying that complements the general sailing knowledge found in the source app.

savvy navvy

known forSavvy Navvy Boating Navigation

1 app4.7Navigation

This app addresses the same maritime audience by integrating active navigation tools instead of providing a static reference manual.

Scott Bender

known forWilhelmSK

1 app4.5Navigation

It targets power users who require technical monitoring of marine hardware, serving as a complex alternative to static reference tools.

The Navigation Family

known forNavily

1 app4.8NavigationSports

This tool targets the same boating audience by providing community-verified data for anchorages and marinas.

TuesdayCoding

known forKnots: Boating and Sailing

1 app3.1ReferenceSports

Focuses on essential sailor knots, providing a simple reference tool that avoids the monetization friction found in other knot apps.

Wavve Boating

known forWavve Boating: Marine Boat GPS

1 app4.7Navigation

It provides a personalized navigation experience for recreational boaters who require more than just symbol reference.

Winkpass Creations

known forKnot Guide (Lite)

1 app3.9ReferenceSports

Acts as a DIY utility for practical rope work, though its monetization model creates friction for users seeking simple reference tools.

Advenio Software

known forColRegs: Nav Light Quiz

2 apps5.0Sports

It narrows the focus to collision avoidance through light and shape recognition training.

Amni

known forNOAA Nautical Charts & Map

1 app3.3Navigation

NOAA Nautical Charts & Maps provides the same underlying chart data in a mobile-optimized format for offline use.

Boatdriver

known forBoatDriver-Guide Swiss

1 app0.0Navigation

This app serves as a localized navigation guide for the same boating audience, providing practical information on facilities.

Carlos Fernandez Mayor

known forKnot tying 3D - Knottie

1 app4.0Reference

Targets the same boating and outdoor audience with 3D animations that allow for frame-by-frame control.

Cotton Crews

known forCotton Crew HIRE - Find Crew

2 apps4.0Sports

Facilitates recruitment for captains, acting as a professional tool for the yachting industry.

DECKEE

known forDECKEE Boating App

2 apps3.2Sports

Provides situational awareness and planning tools for water activities, complementing the source app's educational content with real-time data.

DevPocket

known forBoat Speed in Knots

1 app0.0Reference

Adjacent utility for the same boating audience, providing speed tracking instead of knot instruction.

EZ Celestial

known forEZ Nautical Almanac

1 app5.0Navigation

EZ Nautical Almanac serves the same professional mariner audience by digitizing essential reference data for celestial navigation.

Fission Media Group

known forSailing Knots

1 app0.0Reference

Focuses on the same sailing and boating audience with a curated list of 22 popular knots.

Flytomap

known forGreat Lakes HD Nautical Charts

1 app2.1Navigation

Great Lakes HD Nautical Charts offers a specialized regional navigation tool that provides similar chart data for specific boating areas.

Frank Reed

known forGPS Anti Spoof Pro

1 app3.6Navigation

GPS Anti Spoof Pro provides a specialized verification layer for the same navigation environment by using celestial data.

Free App Studio

known forMarine Traffic Vessel Finder

1 app4.0Navigation

It monitors vessel positions for the same maritime audience but focuses on tracking rather than chart interpretation.

GEOPHONE GROUP INTERNATIONAL Oy

known formKart Marine Navigation

1 app3.5Navigation

mKart provides a 3D navigation environment that includes chart catalogs and automatic routing, serving as a more active navigation tool.

Glenn Ludlow

known forBoat Lights

1 app4.5Sports

This app simplifies vessel identification through a visual search engine rather than text-based rule lookup.

Kwindoo Magyarorszag Korlatolt Felelossegu Tarsasag

known forKWINDOO Tracking for sailing

1 app4.5Sports

Provides regatta tracking and performance analysis, serving as a tool for active sailors rather than beginners.

Lennard Sommer

known forLearn Knots! Boat and Yacht

1 app0.0Reference

Targets the same yachting and sailing audience with a focus on the 10 most essential knots.

Linh Phan Nhat Khanh

known forKnot Tying Guide

1 app1.0Reference

Provides a distraction-free, offline reference for essential knots used by the same outdoor and boating audience.

MADDE22

known forKnots: 3D Guide & Marine Knot

1 app1.0Reference

Serves the same boating and marine audience by providing 3D knot-tying instructions.

Manisha Hirpara

known forUseful Knots - Tying Guide

1 app2.4Reference

Provides a broad reference for boating and outdoor knots, competing for the same user segment.

MediaDigitalPage

known forRules of Sailing Tips 2.0

2 apps0.0Sports

It targets regatta sailors with ISAF-compliant animations as a funnel for desktop software.

Orendasoft

known forSailing Term

1 app4.6Sports

Functions as a mobile vocabulary reference, helping sailors reinforce terminology through interactive quiz modes.

Paul Whittle

known forIRPCS

1 app0.0Sports

It combines official rule text with plain-English explanations to simplify complex regulations for students.

Pearson Smith

known forLicense to Sail

1 app3.8Sports

It leverages native Apple integration to provide a performance-focused study platform for merchant mariners.

Phillip Steffensen

known forFishing Knots & Rigs

1 app4.8Reference

Provides a fishing-focused alternative for users requiring offline access to knot guides in remote locations.

Phuc Pham

known forHow to Tie Knots: Rope Guide

1 app1.0Reference

Targets the same boating and outdoor audience with animated diagrams for essential knots.

Pocket Mariner

known forCompass Eye Bearing Compass

1 app4.6Navigation

This tool provides navigation assistance for the same maritime audience using augmented reality instead of static chart symbols.

Pro People

known for2Sail Sailing Simulator

1 appSports

Offers a simulation environment for learning sailing techniques, acting as a practical application of the theory taught in the source app.

Sail Ties

known forSailTies: Logbook GPS Tracking

1 app4.9Sports

Automates voyage documentation, providing a digital utility for sailors to track progress beyond the initial learning phase.

Sakhalin

known forSEAiq

1 app4.7Navigation

SEAiq provides a full-featured navigation platform that allows users to load diverse chart formats, serving as a more advanced tool than a reference guide.

Sergio Guaita

known forLights and Shapes

1 app0.0Sports

The app focuses on 3D visualization of vessels to help users understand navigation lights from different angles.

Smirnov Yury

known forCOLREG 72: safety at sea

1 app4.8Sports

The app targets the exam-preparation segment by linking regulatory text to interactive quizzes and timed mock exams.

Stentec Software

known forWinGPS Marine

1 app1.3Navigation

WinGPS Marine offers a comprehensive navigation platform for various vessel types, providing real-time GPS tracking and chart data.

TheFreeDictionary.com – Farlex

known forAcronyms and Abbreviations

1 appNavigation

This dictionary provides a broader reference for acronyms that includes maritime terms, competing with the source app's specific focus.

Universal Queue

known forManeuvering Board

1 app5.0Navigation

Maneuvering Board replaces traditional paper tools with digital algorithms, targeting the same professional navigation workflow as the symbol guide.

Vladimir Arefev

known forSailor's Deck: COLREGS

1 app5.0Sports

It uses spaced repetition to build visual memory for navigation lights and shapes.

Vladislav Zhirnov

known forRope Knots Guide

1 app3.2Sports

Acts as a comprehensive reference for knot-tying, supporting the practical skill requirements of sailors and outdoor enthusiasts.

Wartsila Voyage Sweden AB

known forWärtsilä iSailor

1 app3.1Navigation

It offers professional-grade chart data for the same user base but focuses on active navigation and chart updates.

Web and Print

known forFishing Knots FishPlanet

1 app4.7Reference

Targets the same outdoor user base with specialized knot strength analysis for fishing lines.

Zhanna Zairova

known forKnot Tying 3D: Animated Guide

1 app3.9Reference

Targets the same boating and outdoor audience with a focus on 3D instructional content for knot tying.

New entrants(7)

Borys Havruliak

known forMaritrack Marine Traffic: Data

1 app0.0Navigation

Maritrack Marine Traffic provides real-time vessel tracking data that complements the static chart information used by mariners.

Dajiale

known forNav Rules: COLREGS Exam Prep

1 app0.0Sports

This app provides a comprehensive question bank and side-by-side rule text for exam preparation.

DRAWDOWN BRANDS

known forKnot Tying Trainer | Knotwise

1 app4.2Reference

Targets the same boating and outdoor audience with a training-focused approach rather than a simple reference.

Itomic Digital Pty

known forBoat Speed: GPS Knots Mph Kph

2 apps4.1Reference

Adjacent utility for the same boating audience, providing GPS-based speed tracking.

Nautiq Labs OU

known forYacht Swipe

1 app0.0Sports

Provides a platform for yacht crew to manage profiles and discover jobs, acting as a professional networking tool.

RIVERMAP AI SOLUTIONS

known forVictoria Marine Licence Test

1 app0.0Sports

It prepares users for specific regional marine license tests through mock exams and flashcards.

YACHT WORKERS

known forYacht Workers Council

1 app0.0Sports

Acts as a centralized platform for yacht crew to manage career documents and work logs, serving as a professional utility.

The Analyst's Read

The bottom line on The Other Hat

Bottom line

The publisher maintains a stable, niche position by digitizing essential maritime reference material. Their consistent focus on regulatory compliance and certification makes them a reliable, if low-volume, provider in the maritime education space.

Frequently asked questions

How many apps does The Other Hat publish?
The Other Hat has 14 apps tracked by Marlvel, primarily in the Reference category.
What kind of apps does The Other Hat make?
The Other Hat's portfolio is concentrated in Reference and Sports, with an average rating of 3.1/5 across rated apps.
What is The Other Hat's top app?
By review volume across the portfolio, International Certificate of Competence (ICC) is The Other Hat's best-known app tracked by Marlvel.
In how many countries are The Other Hat's apps available?
Marlvel has tracked The Other Hat's apps across 1 country.

What fed this analysis

Apps analyzed:
12
With full intel:
0
With overview:
12
Website scraped:
yes
Social presence:
yes

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with automated quality gates, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by The Other Hat, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Cite this report

Marlvel.ai. “The Other Hat intelligence.” Updated 2026-05-07. https://marlvel.ai/publishers/the-other-hat

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Data licensed under CC-BY-NC 4.0