Best Nav Rules Apps

250+ iOS apps curated and reviewed

4.7 avg rating
12 free apps
Updated September 2026

If you already know NavRules, this is the deeper bench. 250+ nav rules apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of September 2026.

Compare top Nav Rules Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1NavRulesNavRules$15.993.8★ (18)NoNoSep 2026
2Navigation Rules ProNavigation Rules Pro$4.994.8★ (442)NoNoAug 2026
3Navigation RulesNavigation Rules$3.994.8★ (386)NoNoSep 2026
4NavRules Pro: USCG OfflineNavRules Pro: USCG OfflineFree—NoYesOct 2026
5Nautical RulesNautical RulesFree5.0★ (4)NoNoJul 2026
6USCG Navigation Rules HandbookUSCG Navigation Rules HandbookFree—NoYesSep 2026
7Nav Rules: COLREGS Exam PrepNav Rules: COLREGS Exam Prep$14.99—NoNoSep 2026
8Master-NavMaster-Nav$1.994.7★ (94)NoNoOct 2026

Top Picks for Nav Rules

Navigation Rules Pro#2

Navigation Rules Pro by Calculated Industries

Boating Regs and References
Strong Contender
🔍 Reference
4.8(442 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.

Navigation Rules#3

Navigation Rules by Calculated Industries

Boating Regulations
Worth Considering
🔍 Reference
4.8😊(386 ratings)
$3.99
Navigation Rules screenshot 1
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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.

What We Love

  • 👍 Easy to navigate and user-friendly interface
  • 📚 Comprehensive reference material for navigation rules
  • 🚀 Quick access to rules on-the-go
  • 🎓 Excellent study tool for maritime exams and licenses
  • 📖 Well-organized table of contents and structure
  • 🖼️ Visual diagrams and light illustrations helpful for understanding
  • 🔍 Good search functionality
  • ⭐ Reliable and accurate content matching official rules
  • 📱 Convenient portable alternative to physical books
  • 🎯 Bookmarking and favorites feature

Room to Improve

  • 🐛 Poor navigation between rules requires multiple menu presses
  • 📄 Walls of text with limited visual content
  • 🎨 Inconsistent formatting in some sections (e.g., 8F(iii))
  • ❌ Limited additional features beyond basic text content
  • 🔄 Clicking definitions forces users to search for original page again
  • ⚠️ Misleading app description regarding graphics and features
  • 🌍 No clear differentiation between international and inland rules
  • 📊 Lacks interactive elements like quizzes or tests

More Nav Rules apps to explore

FAQ about Nav Rules

What are the best nav rules apps for iPhone?
NavRules tops our nav rules apps ranking as of September 2026, with a 3.8-star average from 18 App Store ratings, and it's priced at $15.99.
Yes — 12 of the top nav rules apps we rank are free to download, including NavRules Pro: USCG Offline and Nautical Rules.
NavRules has no ads and has no in-app purchases, according to its App Store listing as of September 2026.
We track 250+ nav rules apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.