Best Nav Rules Apps

154+ iOS apps curated and reviewed

4.5 avg rating
14 free apps
Updated July 2026

If you already know NavRules, this is the deeper bench. 154+ nav rules apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of July 2026.

Compare top Nav Rules Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1NavRulesNavRules$15.994.0★ (17)NoNoJul 2026
2Nautical RulesNautical RulesFree5.0★ (4)NoNoJul 2026
3Navigation Rules ProNavigation Rules Pro$4.994.8★ (433)NoNoJul 2026
4Navigation RulesNavigation Rules$3.994.8★ (376)NoNoJun 2026
5The Nautical School ExamTutor+The Nautical School ExamTutor+Free4.1★ (24)NoYesJul 2026
6Master-NavMaster-Nav$1.994.8★ (92)NoNoJul 2026
7USCG Exam PrepUSCG Exam PrepFree3.4★ (10)NoYesMay 2026
8Rule MasterRule Master$9.99 was $24.994.8★ (267)YesNoJul 2026

Top Picks for Nav Rules

NavRules#1

NavRules by Mintaka Innovations

Editor's Choice
🗺️ Navigation
4.0(17 ratings)
$15.99
#12in Navigation
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Master nautical navigation rules with practice exams and a comprehensive rule book. Focus your learning by customizing tests based on question type, rule, and filter. Track your progress and review answers with detailed explanations.

Nautical Rules#2

Nautical Rules by Joseph Kim

Master the Rules of the Road
Strong Contender
🗺️ Navigation
5.0(4 ratings)
Free
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Master USCG Navigation Rules with a comprehensive question bank and smart study features. Track your progress, practice for exams, and study offline to navigate with confidence.

Navigation Rules Pro#3

Navigation Rules Pro by Calculated Industries

Boating Regs and References
Worth Considering
🔍 Reference
4.8(433 ratings)
$4.99
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This app provides comprehensive boating regulations and reference materials, including international and inland navigation rules, sound and light signals, and communication information. It features quick references, calculators, and unit conversions for boaters.

More Nav Rules apps to explore

4
Navigation Rules
Navigation Rules
Navigation Rules
Boating Regulations
$3.99

Access the complete International Regulations for Preventing Collisions at Sea (COLREGs) and Inland Navigation Rules. This app provides a searchable, annotated version of boating regulations, ideal for quick reference and sharing information.

COLREGs and Inland Navigation RulesAnnotated table of contentsSearch function
🔍 Reference
(376)
free
5
The Nautical School ExamTutor+
The Nautical School ExamTutor+
The Nautical School ExamTutor+
Learn Rules of the Road
Free

Prepare for your USCG OUPV examination with this comprehensive learning program. It offers over 1,300 practice questions, instant feedback, and detailed explanations to help you master the Nautical Inland and International Rules of the Road.

1300+ practice questionsInstant feedback and explanationsProgress tracking and scoring
📚 Education
(24)
free with in-app purchases
6
Master-Nav
Master-Nav
Master-Nav
NAV RULES - the easy way!
$1.99

Learn maritime navigation rules with an interactive system designed for effective retention. This app breaks down complex regulations into manageable sections with visual aids and mnemonics. It revisits incorrect answers and provides instant graphical feedback, making the learning process intuitive and efficient.

Interactive learning systemStep-by-step rule guidanceMnemonics and memory aids
📚 Education
(92)
paid
7
USCG Exam Prep
USCG Exam Prep
USCG Exam Prep
OUPV & Captains License Prep
Free

Prepare for U.S. Coast Guard and FCC license exams with a comprehensive study platform. Access thousands of questions, track your progress, and take practice exams offline. Sync your learning across app and web versions.

Access to USCG and FCC license exam questionsProgress tracking by study categoryTag questions for later review
📚 Education
(10)
free with in-app purchases
8
Rule Master
Rule Master
Rule Master
Rules of the Road Toolbox
$9.99
$24.99 | 60% OFF

Master maritime navigation rules with this comprehensive quiz app. It offers extensive question banks, custom filters, and detailed progress tracking for both new and experienced sailors. Generate custom exams and access a digital handbook for efficient learning and exam preparation.

10,000+ question-answer combinationsCustom question filtersFill-in-the-blank questions
🗺️ Navigation
(267)
free with in-app purchases
9
Sea Trials - USCG License Exam
Sea Trials - USCG License Exam
Sea Trials - USCG License Exam
Upgrade USCG License
Free

Prepare for U.S. Coast Guard DECK & ENGINE exams with this comprehensive study tool. Access an updated question bank, official diagrams, and real-time scoring. Advanced features like custom tests and AI tutoring are available via upgrade.

USCG question bankOfficial USCG diagramsReal-time scoring
📚 Education
(375)
free with in-app purchases
10
ColRegs:Rules of the Road 3D LITE
ColRegs:Rules of the Road 3D LITE
ColRegs:Rules of the Road 3D LITE
by Advenio Software SRL
Free

Learn and practice sailing navigation rules with interactive 3D simulations. This app offers a didactic and fun approach to mastering collision avoidance and safe navigation on the water.

3D simulation for immersive learningLearning, testing, and simulation modesCollision avoidance practice
🗺️ Navigation
(1)
free
11
Seabook Maritime
Seabook Maritime
Seabook Maritime
The Leading #1 Maritime App
Free

This app provides essential maritime information for seafarers and shore-based professionals. It serves as an offline reference for ship stability, navigation, regulations, and marine engineering, aiding in safer seas and cleaner waters.

COLREG regulationsGMDSS informationMarine engineering details
📚 Education
(19)
free
12
Nav Rules: COLREGS Quiz
Nav Rules: COLREGS Quiz
Nav Rules: COLREGS Quiz
Boat Lights & Give-Way Trainer
Free
🗺️ Navigation
(0)
13
BoatUS - Boat Weather & Tides
BoatUS - Boat Weather & Tides
BoatUS - Boat Weather & Tides
24/7 Boat Towing & Insurance
Free

This app provides 24/7 towing assistance for boaters, along with detailed weather and tide forecasts. It also helps users find discounts at marine businesses and manage their membership and insurance policies.

24/7 towing assistanceBoating forecasts (weather & tides)Small craft advisories
☀️ Weather
(58K)
free with in-app purchases
14
Marinus: maritime rules
Marinus: maritime rules
Marinus: maritime rules
COLREGs, IRPCS, IALA & more!
Free

This app provides comprehensive guidance on maritime navigation rules and signals. It offers detailed information on flags, lights, sounds, and buoyage systems, along with interactive quizzes and a map feature. Designed for sailors, it ensures safe navigation on any vessel.

Maritime flags and meaningsWeather scales and cloud identificationSound signal guidance
📚 Education
(214)
free with in-app purchases
15
NOAA Marine Weather & Forecast
NOAA Marine Weather & Forecast
NOAA Marine Weather & Forecast
Predict wind, swell, and waves
Free

This app provides real-time wind, wave, and weather predictions for maritime activities. It features intuitive charts, station search, and customizable subscription plans to enhance your experience on the water.

Accurate wind, wave, and weather predictionsIntuitive wind, wave, and weather chartsStation search with custom suggestions
☀️ Weather
(5K)
free with in-app purchases
16
Savvy Navvy: Boat Navigation
Savvy Navvy: Boat Navigation
Savvy Navvy: Boat Navigation
GPS, Nautical Charts, Boating
Free

This app provides comprehensive marine navigation, integrating charts, weather, tides, and GPS tracking. It simplifies route planning and offers real-time safety data to ensure confident and enjoyable time on the water for various boating activities.

Clutter-free nautical chartsSmart route planning with weather and tide integrationReal-time GPS tracking
🗺️ Navigation
(7.6K)
free with in-app purchases
17
Яндекс Навигатор – GPS, Пробки
Яндекс Навигатор – GPS, Пробки
Яндекс Навигатор – GPS, Пробки
Парковки и заправки – по пути
Free

Navigate cities with real-time traffic updates and avoid jams. Plan multi-stop routes, find parking and fuel, and get voice-guided directions. Offline maps ensure you never get lost.

Real-time traffic avoidanceMulti-stop route optimizationParking spot finder and payment
🗺️ Navigation
(24K)
free with in-app purchases
18
CoPilot GPS Navigation
CoPilot GPS Navigation
CoPilot GPS Navigation
GPS for Car, RV and Truck
Free

Navigate roads safely and efficiently with voice-guided offline maps. Optimized routing for cars, trucks, and RVs helps you avoid restrictions, save time, and find points of interest. Enjoy a free trial before subscribing.

Offline voice-guided navigationTruck-specific routing (low bridges, restrictions)RV-specific routing (vehicle size)
🗺️ Navigation
(2K)
free with in-app purchases
19
Sygic Truck & RV Navigation
Sygic Truck & RV Navigation
Sygic Truck & RV Navigation
Offline maps, GPS & CarPlay
Free

Navigate large vehicles with intelligent routing tailored to your truck, RV, or bus specifications. Enjoy offline 3D maps, real-time traffic, and speed camera warnings for a safe and efficient journey. Access truck-specific points of interest and detailed vehicle settings.

Customized routes for vehicle type, size, and weightAdvanced vehicle settings including HAZMAT3D offline maps with free updates
🗺️ Navigation
(2.9K)
free with in-app purchases
20
Tactical NAV
Tactical NAV
Tactical NAV
TACNAV-X: Military Navigation
$8.99
$9.99 | 10% OFF

This military-grade navigation app provides highly accurate positioning and mission planning tools for service members. It offers offline mapping, precision targeting, and waypoint plotting with military graphics, ensuring reliable operation in any environment.

Precision targeting platformOffline mappingWaypoint plotting with military graphics
🗺️ Navigation
(320)
free with in-app purchases

FAQ about Nav Rules

What are the best nav rules apps for iPhone?
NavRules tops our nav rules apps ranking as of July 2026, with a 4.0-star average from 17 App Store ratings, and it's priced at $15.99.
Yes — 14 of the top nav rules apps we rank are free to download, including Nautical Rules and The Nautical School ExamTutor+.
NavRules has no ads and has no in-app purchases, according to its App Store listing as of July 2026.
We track 154+ nav rules apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
NavRules covers the International and US Inland Navigation Rules, including Canadian Modifications. It also includes a complete copy of the Navigation Rules and an index to them.
NavRules offers practice exams where you control the number, scope, and filters of questions. It also features a Flash Card mode and allows direct linking to questions for specific rules.