IALA Buoyage & Lights
by The Other Hat
- Reference
- Paid
- Rating
- 0.0
- 0 ratings · India storefront
- Last update
- Aug 11, 2026
- Version 10.0.1
- Size
- 18 MB
- Category
- Reference
- Tracked since
- Oct 9, 2026
Estimated revenue
A model estimate with a likely range, not a reported figure.
No estimate. Apps outside the grossing charts, and some countries, have no reliable rank-to-revenue curve, so we show nothing rather than a guess.
How this estimate is made
Rank: we take the app's best Top Grossing rank on the latest chart day. Category ranks are converted into an equivalent overall rank, because a #10 in Finance earns far less than a #10 overall.
Curve: that equivalent rank is read off a rank-to-revenue curve anchored on public company revenue and market-data reports for the US iPhone App Store.
Country: the curve is scaled per country (Japan is roughly a third of the US, Türkiye under 1%). Where we have no scale, such as China, there is no estimate.
Range: the likely range widens with country, category and chart depth. It is a plausible span, not a statistical confidence interval.
Not included: ads, payments outside the App Store, and any difference between gross sales and what the developer keeps. Low confidence means indirect data; medium means several independent sources agree.
Full methodScreenshots
As shown on the App Store listing.
About this app
Text from the App Store listing.
IALA Buoys & Lights helps to improve your navigation skills and stay safer on the water. It covers both IALA Maritime Buoyage Systems A and B.
This essential reference, learning and revision app helps skippers, sailors, boaters, anglers, crew and maritime professionals recognise and interpret buoyage, navigation marks and light characteristics.
“The graphics are clear and well done, and the info is great to carry with me. Works perfectly.”
Downloaded and used by thousands of seafarers across Great Britain, the USA, Australia, France, Canada, New Zealand and more than 50 other countries.
QUICK, RELIABLE, PRACTICAL REFERENCE
Whether you are on the water or ashore, studying in daylight or checking a mark in darkness or poor visibility, IALA Buoys & Lights makes it easy to find the relevant illustration, rule and definition.
- Quick reference IALA Buoys and Lights - systems A and B.
- Search across the app to find buoyage, lights and IALA rules quickly
- Find key sections quickly from the redesigned home screen
- Supports sailing, boating and maritime training courses
- Learn using more than 100 custom-made illustrations
- Supports classroom instruction and independent study
- Test your recall through interactive quizzes
- Visual aide-mémoire when out on the water
- Use the core reference content without an internet connection
>>> FULL APP — AD FREE | NO IN-APP PURCHASES | NO SUBSCRIPTION
WHAT'S NEW IN THIS VERSION
This major update makes IALA Buoys & Lights faster, clearer and easier to use.
- Save Favourites
- Reorder Favourites
- Continue from last page viewed
- Detailed search results
- New gallery-style image viewer
- Access additional Safe Skipper online quizzes
- Share the app directly with friends
WHAT’S INCLUDED
1. BUOYAGE
Explore a visual reference guide containing 70 illustrations with clear descriptions of different buoy types, their uses, appearance, variations and light characteristics.
2. LIGHTS
Review 12 illustrations explaining the different types of lights and characteristics used by beacons and lighthouses.
3. IALA RULES
Consult the International Association of Marine Aids to Navigation and Lighthouse Authorities guidance covering the IALA A and IALA B buoyage systems.
4. TEST YOURSELF
Check and improve your knowledge with multiple-choice questions featuring 35 graphic representations of buoys and lights. Clearer feedback highlights correct answers and helps you learn from mistakes. You can also access an extended selection of online quizzes.
DESIGNED FOR LEARNING AND REVISION
If you are responsible for a vessel at sea, regardless of its size, you need to recognise navigation marks by day and night and understand what they mean.
Use IALA Buoys & Lights:
- As a quick-reference and revision tool
- As a powerful visual aide-mémoire
- To reinforce essential maritime safety knowledge
- To improve your knowledge and recall through quizzes
- To support sailing, boating and maritime training courses
- To refresh your knowledge before heading out on the water
The app’s carefully created illustrations and concise explanations make complex information easier to understand and remember.
ENDORSED BY THE BOATING COMMUNITY
>>> Used by thousands of seafarers across Great Britain, the USA, Australia, France, Canada, New Zealand and more than 50 other countries.
“I was so impressed with your Nav Lights app that I bought it and downloaded it immediately.”
“The graphics are excellent and I think this will be really useful while out at sea or at home for revision purposes.”
OTHER APPS IN THIS SERIES
- ColRegs: Lights and Shapes provides in-depth coverage of ColRegs Rules 20–31.
- ColRegs: The Rules of the Road covers the Steering and Sailing Rules and Sound and Light Signals sections of the IRPCS.
Improve your knowledge, test your recall and keep essential buoyage and light information close at hand with IALA Buoys & Lights.
What’s new
Release notes for the latest version, as written by the developer.
This major update makes IALA Buoys & Lights faster, clearer and easier to use.
- Save Favourites
- Reorder Favourites
- Continue from last page viewed
- Detailed search results
- New gallery-style image viewer
- Access additional Safe Skipper online quizzes
- Share the app directly with friends
- Updated promotional screengrabs
Rank history
Daily position in the Netherlands charts. #1 is at the top.
- Best rank
- #76
- Current rank
- #80
- Days charting
- 7 of 7
On the charts today
Small & simple score
How realistic it is for a small team to build something like this.
75/100
Not flagged as small & simple
- Developer size0% · 25
Developer: 14 apps on the charts
- Audience size100% · 20
Ratings: 0
- App size100% · 10
Size: 18 MB
- Price model100% · 15
Price model: paid
- Demand proof100% · 30
Best rank #1, 50 countries
An indicator, not a fact. We can't see team size. Calculated Oct 25, 2026 · method i2
How the score worksVersion history
- 10.0.1LatestReleased Aug 11, 2026