# Boat Rules: Lights & Signals — COLREGs & Navigation Rules

> COLREGs & Navigation Rules (iPhone/iPad app by IOANNIS CHATSILIDIS.)

- Source: https://appshunter.io/ios/app/boat-rules-lights-and-signals/id6824184418 (this page in markdown: same URL + `.md`)
- Developer: [IOANNIS CHATSILIDIS](https://appshunter.io/developer/6779295773)
- Category: Education, Navigation
- Price: $4.99
- Age rating: 4+
- Requires: iOS 17.0 · 2 MB
- Languages: American English
- Released: 2026-10-19
- Data updated: 2026-10-24

## What is Boat Rules?

Learn the international Rules of the Road (COLREGs) and be ready for your boating or captain's exam.

LIGHTS & SHAPES TRAINER
Pick one of 12 vessels: power-driven, sailing, towing, trawling, fishing, not under command, restricted, constrained by her draft, pilot, at anchor or aground. Tap a position around her and see exactly which lights you would see at night, or which shapes by day, and what you should do.

REAL EXAM QUESTIONS
Practice with questions from the U.S. Coast Guard's published Rules of the Road sample exams, plus our own questions on lights and shapes. Every answer comes with a short explanation and the rule it comes from. Answers are shuffled every time, so you learn the rule, not the position.

A PLAN TO YOUR EXAM DATE
Set your exam date and the app spreads the questions over the days left. Questions come back just before you would forget them; the ones you get wrong come back sooner. One daily reminder tells you how many are waiting.

KNOW HOW READY YOU ARE
Your readiness score shows how many of 30 you would get right on a practice test today, against a 90% pass mark.

PRACTICE TESTS
30 questions from every topic, timed, with no feedback until you submit, then a breakdown by topic.

U.S. INLAND RULES
Sailing on U.S. inland waters, the Great Lakes or the Western Rivers? Turn on the Inland Rules in Settings to add the Coast Guard's inland questions.

EVERYTHING INCLUDED
One purchase. No subscription, no ads, no account. Works offline. Your data stays on your iPhone.

NOTE
Boat Rules is a study aid, not a navigation aid. It does not replace the official Navigation Rules, proper training or local regulations. Questions marked "USCG sample exam" are reproduced from the U.S. Coast Guard National Maritime Center sample examinations. Boat Rules is independent and not affiliated with the U.S. Coast Guard, the IMO or any licensing authority.

## Is Boat Rules safe?

Not enough ratings yet to assess Boat Rules.

## Is Boat Rules legit?

Boat Rules: Lights & Signals has limited verification signals. The AppsHunter Legitimacy Score for Boat Rules is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-10-20

No release notes.

## More apps by IOANNIS CHATSILIDIS

- [flow. earnings ticker](https://appshunter.io/ios/app/flow-earnings-ticker/id6779295770)
- [Τεστ Διπλώματος Σκάφους](https://appshunter.io/ios/app/id6824059072)
- [Learn to Sail: Wind & Trim](https://appshunter.io/ios/app/learn-to-sail-wind-and-trim/id6824284849)

All apps by IOANNIS CHATSILIDIS: https://appshunter.io/developer/6779295773

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-24.*