COLREGS Downloads & RevenueCOLREGS: Rules of the Road · App Store
COLREGS: Rules of the Road is #31 in Education Paid in Canada and charting in 1 of 30 countries we track.
Updated 11 Nov 2026 · rankings refresh through the day
DeveloperJULIO ALEXANDER DELGADO
CategoryEducation
Price4.99 USD
Released
Rating★ 3.0 (2)
Version1.4.3
Age rating4+
First seen by us
26 Sep 2026
26 Sep 2026COLREGS: Rules of the Road update history & changes
Last change · 8 events since 12 May 2026Full timeline ↓📈Entered the top 100📈Charting in a new country📦Updated to version 1.4.3📦Updated to version 1.4🆕First spotted by AppInsider🆕Released on the App Store
Full timeline · 8 events
- 📈COLREGS: Rules of the Road entered the top 100Top Paid · Education · CA
- 📈COLREGS: Rules of the Road charting in a new countryCanada
- 📦COLREGS: Rules of the Road updated to version 1.4.3New Diagrams and Lights study filters, diagrams shown right in each question, clearer empty screens, and a fix so every diagram shows on multi-diagram questions.
- ✏️COLREGS: Rules of the Road: app got bigger3 MB → 5 MB (+63%)
- 📦COLREGS: Rules of the Road updated to version 1.4What's new in 1.4
• Study the full 1,272-question bank — the 50-question limit is gone.
• Tap any rule to read its official text (International or Inland), then open the complete Navigation Rules handbook right at that page.
• Diagrams scroll smoothly. Swipe between diagrams and pinch to zoom.
• Light and Dark mode — switch from the Home screen or Settings.
• Daily Question of the Day reminders (turn on in Settings).
• Bug fixes and polish.… more - 🆕COLREGS: Rules of the Road first spotted by AppInsider#88 in Top Paid · Education · United States
- 📦COLREGS: Rules of the Road version 1.3Bug fix: the Quick Action buttons on the Home screen (Continue Study, Take Quiz, Drill Missed, Browse Diagrams) now navigate correctly. Thanks to the users who reported this!
- 🆕COLREGS: Rules of the Road released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
3.0 ★
2 ratings
Measured
Best rank now
#31
Education PaidMeasured
COLREGS: Rules of the Road on the App Store
App details
App ID
6760242895
Publisher
JULIO ALEXANDER DELGADO
On the store since
May 2026
Under a year
Minimum OS
iOS 17.0+
iPhone XS and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
1
EN
Size
5 MB
Also listed in
Reference
Where COLREGS: Rules of the Road's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Canada | EducationPaid | #31 |
Apps near COLREGS: Rules of the Road on the chart
Education Paid, around #31.
Ratings
App Store, worldwide.
Rating
3.0 ★
2 ratings
Measured
Ratings
2
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
3.0★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
54/100
faster than 57% of Education apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
About COLREGS: Rules of the Road
Prepare with confidence for the USCG licensing exam or any navigation rules qualification with the most comprehensive COLREGS study app available.
Whether you're a Merchant Mariner, a professional deck officer, or a recreational boater pursuing your captain's license, COLREGS: Rules of the Road gives you everything you need to master the International and Inland Navigation Rules all in one beautifully designed app.
STUDY SMARTER, NOT HARDER
The built-in Spaced Repetition system uses the proven Leitner box method to surface the questions you struggle with more often and retire the ones you've mastered. Instead of grinding through every question every session, you make measurable progress toward exam-day confidence in less time.
Prefer a looser review session? Switch to Shuffle Mode for a randomized run through the full question bank great for quick refreshers.
1,272 EXAM-QUALITY QUESTIONS
Questions are organized across three categories that mirror actual exam structure:
- International Rules open-ocean scenarios under COLREGS
- Inland Rules U.S. inland waters distinctions and applications
- Both rules that apply across all waters, tested together
Filter by topic to focus your study where it counts:
- Lights (Rules 20-31) vessel identification, arc requirements, and display obligations
- Shapes day signals and their meanings
- Whistles and Sounds (Rules 32-37) maneuvering and warning signals
- Diagrams questions paired with one of 87 reference diagrams
87 INLINE REFERENCE DIAGRAMS
Diagram questions display the relevant illustration directly within the question card no switching apps or flipping through a paper handbook.
FULL NAVIGATION RULES PDF VIEWER
Every question links directly to the relevant page of the official, public-domain U.S. Coast Guard Navigation Rules publication. Tap the rule reference on any question card to jump straight to the authoritative text.
SIMULATE REAL EXAM CONDITIONS
Quiz Mode presents question sets with a 90% pass threshold matching the rigor of real qualification exams. Your quiz history is saved automatically so you can track scores over time and see your improvement at a glance.
Drill down on your weakest areas with Missed Questions Mode, which isolates every question you've answered incorrectly for targeted review.
BUILT FOR HOW YOU STUDY
- Bookmark any question for a personal review list
- Dark and Light theme study comfortably in any lighting
- No account required, no internet connection needed
- One-time purchase no subscriptions, no in-app purchases
WHO IS THIS FOR?
- Merchant Mariners studying for USCG Deck Officer licensing
- Maritime Academy and professional mariners
- Recreational boaters pursuing a captain's license
- Anyone who wants to know the Rules of the Road cold
One-time purchase. Study anywhere. Know the Rules.
Independent study aid. Not affiliated with, endorsed by, or sponsored by the U.S. Navy, the U.S. Coast Guard, or any government agency.
Whether you're a Merchant Mariner, a professional deck officer, or a recreational boater pursuing your captain's license, COLREGS: Rules of the Road gives you everything you need to master the International and Inland Navigation Rules all in one beautifully designed app.
STUDY SMARTER, NOT HARDER
The built-in Spaced Repetition system uses the proven Leitner box method to surface the questions you struggle with more often and retire the ones you've mastered. Instead of grinding through every question every session, you make measurable progress toward exam-day confidence in less time.
Prefer a looser review session? Switch to Shuffle Mode for a randomized run through the full question bank great for quick refreshers.
1,272 EXAM-QUALITY QUESTIONS
Questions are organized across three categories that mirror actual exam structure:
- International Rules open-ocean scenarios under COLREGS
- Inland Rules U.S. inland waters distinctions and applications
- Both rules that apply across all waters, tested together
Filter by topic to focus your study where it counts:
- Lights (Rules 20-31) vessel identification, arc requirements, and display obligations
- Shapes day signals and their meanings
- Whistles and Sounds (Rules 32-37) maneuvering and warning signals
- Diagrams questions paired with one of 87 reference diagrams
87 INLINE REFERENCE DIAGRAMS
Diagram questions display the relevant illustration directly within the question card no switching apps or flipping through a paper handbook.
FULL NAVIGATION RULES PDF VIEWER
Every question links directly to the relevant page of the official, public-domain U.S. Coast Guard Navigation Rules publication. Tap the rule reference on any question card to jump straight to the authoritative text.
SIMULATE REAL EXAM CONDITIONS
Quiz Mode presents question sets with a 90% pass threshold matching the rigor of real qualification exams. Your quiz history is saved automatically so you can track scores over time and see your improvement at a glance.
Drill down on your weakest areas with Missed Questions Mode, which isolates every question you've answered incorrectly for targeted review.
BUILT FOR HOW YOU STUDY
- Bookmark any question for a personal review list
- Dark and Light theme study comfortably in any lighting
- No account required, no internet connection needed
- One-time purchase no subscriptions, no in-app purchases
WHO IS THIS FOR?
- Merchant Mariners studying for USCG Deck Officer licensing
- Maritime Academy and professional mariners
- Recreational boaters pursuing a captain's license
- Anyone who wants to know the Rules of the Road cold
One-time purchase. Study anywhere. Know the Rules.
Independent study aid. Not affiliated with, endorsed by, or sponsored by the U.S. Navy, the U.S. Coast Guard, or any government agency.
Latest updates
1.4.3
New Diagrams and Lights study filters, diagrams shown right in each question, clearer empty screens, and a fix so every diagram shows on multi-diagram questions.
1.4
What's new in 1.4
• Study the full 1,272-question bank — the 50-question limit is gone.
• Tap any rule to read its official text (International or Inland), then open the complete Navigation Rules handbook right at that page.
• Diagrams scroll smoothly. Swipe between diagrams and pinch to zoom.
• Light and Dark mode — switch from the Home screen or Settings.
• Daily Question of the Day reminders (turn on in Settings).
• Bug fixes and polish.
1.3
Bug fix: the Quick Action buttons on the Home screen (Continue Study, Take Quiz, Drill Missed, Browse Diagrams) now navigate correctly. Thanks to the users who reported this!
Store changes
What COLREGS: Rules of the Road changed on its store page: name, icon, screenshots, price, size, languages, requirements.
App got bigger
3 MB → 5 MB (+63%)