Comparison

Nautical Rules vs Maritime Toolkit

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Nautical Rules

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.

Highlights
  • 1,200+ practice questions
  • Inland and International waters coverage
  • Detailed explanations
  • Customizable tests
  • Offline study capability
  • Progress tracking dashboard
  • Accuracy by rule statistics
Read full description

Nautical Rules is the ultimate study companion for mastering the USCG Navigation Rules (COLREGS). Whether you're preparing for your captain's license exam or refreshing your maritime knowledge, this app provides everything you need to succeed. COMPREHENSIVE QUESTION BANK - Over 1,200 practice questions covering all Navigation Rules - Questions for both Inland and International waters - Covers Steering & Sailing Rules, Lights & Shapes, Sound Signals, and more - Detailed explanations SMART STUDY FEATURES - Take customizable tests with 10, 25, 50, or 100 questions - Practice mode with immediate feedback and explanations - Focus Area suggestions to target your weakest rules - Bookmark questions for later review - Review your mistakes to reinforce learning TRACK YOUR PROGRESS - Activity dashboard with test history and statistics - See your accuracy by rule (Rule 1, Rule 2, etc.) - Track your study streak and mastery level - View detailed results for each completed test DESIGNED FOR MARINERS - Clean, intuitive interface optimized for study sessions - No internet connection required - study anywhere - All questions based on official USCG Navigation Rules - Perfect for captains, SWO, sailors, and maritime professionals Whether you're studying for the USCG license exam, improving your seamanship skills, or just want to stay sharp on the water, Nautical Rules gives you the tools to succeed. Download now and navigate with confidence! --- Note: This app is an educational study aid and is not affiliated with or endorsed by the U.S. Coast Guard. For official rules and regulations, consult the official USCG Navigation Rules publications.

About

Maritime Toolkit

Features
Read full description

Maritime Toolkit is ten small navigation and seamanship tools behind one search box. Type what you are trying to work out and go straight to it. ANCHORING Anchor scope from depth and bow height, measured from the roller rather than the waterline, which is where most scope calculations quietly go wrong. Swing circle from rode and boat length, with the reminder that two boats need the sum of their radii between their anchors, not between their hulls. SAIL AND WEATHER When to reef, weighted for the gust rather than the mean, because the gust is what puts the rail under. LINES AND WARPS Which fibre for which job and why, in one screen. Nylon where you want stretch, polyester where stretch costs you. Dock line diameter and the full set of lengths for a boat of a given size. NAVIGATION Compass deviation worked both ways, so you do not have to remember which direction the rhyme runs. Distance off by vertical sextant angle, with a warning about where the geometry stops being honest. Fuel range with a reserve policy applied, not just the theoretical maximum. SAFETY The man overboard sequence in order, written to be read now rather than then. Sound signals with what each pattern means and which rule it comes under, because one prolonged blast means different things in sight and in fog. FOUR TOOLS FREE Anchor scope, swing circle, when to reef, and rope for the job. The other six unlock together, once. WORKS OFFLINE No account, no signal. These are working tools, not authorities. Sea state, your own boat and your own crew decide, and the official publications, the collision regulations, your almanac and your engine manual, always take priority.

Screenshots

Nautical Rules4 screens
Maritime Toolkit4 screens

Verdict

The call

Nautical Rules and Maritime Toolkit are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Nautical Rules ships an update every 3 weeks, Maritime Toolkit every 5 weeks. The most recent releases landed on October 24, 2026 and October 12, 2026 respectively.

ScorecardNo meaningful differences
Nautical Rules versus Maritime Toolkit: the parameters behind the verdict, then further details
ParameterNautical RulesMaritime Toolkit
PriceFreeFree
Rating5.0 (12 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings12 — better—
Update frequencyEvery 3 weeks — betterEvery 5 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.016.4 — better
Further details — not scored
Size5 MB38 MB
Age rating4+4+
DeveloperJoseph KimEVREN YUCEBAS

In-app purchases

None

Nautical Rules

No in-app purchases

None

Maritime Toolkit

No in-app purchases

Questions

Is Nautical Rules free?
Nautical Rules is free to download, with no in-app purchases.
Is Maritime Toolkit free?
Maritime Toolkit is free to download, with no in-app purchases.
Do Nautical Rules or Maritime Toolkit have ads?
Neither Nautical Rules nor Maritime Toolkit shows ads.
Which is updated more often, Nautical Rules or Maritime Toolkit?
Nautical Rules ships an update every 3 weeks, and Maritime Toolkit every 5 weeks. Most recently, Nautical Rules was updated on October 24, 2026 and Maritime Toolkit on October 12, 2026.

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