ColRegs: Nav Lights & Shapes 4+

for Boating and Sailing

The Other Hat

Designed for iPad

    • 3.0 • 2 Ratings
    • £3.99



The quick reference, learning & revision tool for all seafarers. Essential for sailors, power boaters & fishermen. Updated hi-res detailed graphics.

Quick learning & revision tool, over 100 graphics, for all seafarers - this sailing, boating & marine app provides all sailors, boaters & fishermen with essential quick reference knowledge to help them identify vessels and the activities they are engaged in, as specified by the ColRegs.

Whether out on the water or on shore, in daylight, darkness or poor visibility, simply open the app and search the rules in seconds to find the appropriate ColRegs rule and definition.

This application has been downloaded & used daily by thousands of seafarers in the USA, Great Britain, Australia, France, Canada, New Zealand & over 50 other countries

- No internet connection required.
- Simple, easy to use navigation for quick reference.
- Every rule & definition available at the touch of a finger.
- Expertly drawn illustrations accompanied by clear, concise descriptions of all the rules.

The app has 4 sections:
1. The Nav Lights section features graphics & descriptions of the lights that are displayed by different vessels at night.

2. The Day Shapes section features graphics & descriptions of the shapes that are displayed during daylight.

3. Three quiz Test Yourself section features multiple combinations of lights & shapes to test your knowledge.

4. The ColRegs section features the rules in full.

Use the Test Yourself section to check your knowledge and application of the rules. If you answer any incorrectly, go back and read through the rule again.

A good understanding of the ColRegs is essential for all people who go to sea in sailing and power boating craft. A candidate for Yachtmaster exams should be aiming to achieve at least 80% pass marks.

ColRegs Nav Lights & Shapes helps boaters identify the types of vessel and the activities they are engaged in at sea, as specified by the International Regulations for Preventing Collisions at Sea. This learning tool covers Part C: Lights and Shapes, Rules 20-31 of the ColRegs.
Our other app in this series: “ColRegs Rules Of The Road” covers "Steering & Sailing Rules" and "Sound and Light Signals" sections as specified in the IRPCS.

************ FEATURES and BENEFITS *******************
- Easy reference learning and revision tool for day skipper and similar courses worldwide
- Over 100 custom made graphics for a better visual experience
- Researched and produced by nautical and marine experts for accuracy
- Positively evaluated by professional pilots for reliability
- Interactive "Test Yourself" Section
A useful tool to assist Trainers and Trainees on Day Skipper and Yacht master Courses.


"I liked the general feel and simplicity of the ColRegs Rules of the Road app"

"Very easy to use, wish I'd had this when I was doing day skipper!"

"We run a training centre and these apps are a great aide memoire for our students."

"I have just downloaded and am using ColRegs Nav Lights & Shapes app, a brilliant training and reference device."

"I was so impressed with your Nav Lights app that I bought it and downloaded it immediately."

"I really like the colregs part of it and the way you have kept it completely in line with the IRPCS."

"I have deleted another app that I had in favour of yours."

"....excellent graphics, really first class clean design and accurate info..."

" Beautifully produced and very simple to use, a cool learning tool"

" Good app for anyone to use, especially when you are training for boatmaster, yachtmaster etc. Much easier than flip cards"

Boaters know that collision avoidance is made possible when boat operators know how to deal with situations appropriately.

ColRegs: The Rules of the Road covers the "Steering and Sailing Rules"
"Sound and Light Signals" sections of the IRPCS IALA Buoys & Lights - covers both IALA Systems A & B

What’s New

Version 8.2

New detailed hi-res graphics.

Ratings and Reviews

3.0 out of 5
2 Ratings

2 Ratings

mungobella ,

Okay, but not much value added compared to Imray

I already owned the Imray app that goes over the same material. I bought this one mostly for the multiple choice quiz that it has. This function was nice to have, but it would have been better if there'd been some analysis of your results and if the quiz had covered a bit more material (sounds, for instance). I would also preferred if the quiz had been broken down into section (night lights, day shapes, etc). For revising, I prefer the Imray app--it just seemed a bit cleaner and easier to negotiate. This is only a couple quid, though, and it was nice to have the quiz, even with its limited functionality.

Tom1781 ,


Absolute waste of money! Thought it was worth a go but it’s poorly made and definitely not optimised for I'd. Tests are ok but these are the same as the free online ones available. I read the bad reviews and still purchased the app... Don't make the same mistake

Shugatlarge ,

Not good

I initially had high hopes for these 3 apps however there are quite a few completely wrong answers in the tests and the tests themselves are repetitive. Once you've done them once you get the same questions again.
So, disappointing for the money.

App Privacy

The developer, The Other Hat, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

More By This Developer

ColRegs: Rules of the Road
IALA Buoyage & Lights
Safe Skipper - tips and advice
International Certificate of Competence (ICC)
Growing Organic Vegetables

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