# Navigation Rules

> Boating Regulations

Canonical page: [https://chrome-stats.com/d/id327936562](https://chrome-stats.com/d/id327936562)

## Overview

- **ID:** `id327936562`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Calculated Industries
- **Category:** Reference
- **Rating:** 4.80 / 5 (388 ratings)
- **Version:** 4.1.9
- **Last updated:** 2021-12-07
- **First published:** 2009-08-29
- **Size:** 35 MB
- **Data as of:** 2026-09-24
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/navigation-rules/id327936562)
- **Website:** [https://www.calculated.com](https://www.calculated.com/)
- **Privacy policy:** [https://www.calculated.com/calc-apps/privacy.asp](https://www.calculated.com/calc-apps/privacy.asp)

## Description

Navigation Rules provides a complete, up-to-date copy of the International Regulations for Preventing Collisions at Sea (COLREGS) 1972, with amendments, plus the Inland Navigation Rules for all inland waters including the Great Lakes. The most recent COLREGS version is dated June 28, 2019.

Navigation Rules offers an annotated table of contents, a fast search to locate rules and references, a Favorites page for quick access, and an email sharing option. This resource is essential reading for boaters seeking quick access to critical navigation rules.

## Rankings

- #79,801 — Overall

## Review summary

Reviewers broadly praise Navigation Rules as a fast, user-friendly reference and a strong study aid for boaters. They value its easy navigation, on-the-go accessibility, helpful visuals, and comprehensive coverage of international and inland rules with good organization. It also helps users stay prepared for tests and feel confident on the water. A common suggestion is adding built-in quizzes to enhance study. Overall, the app is seen as a reliable, handy resource for deck watch and boating safety.

### Pros

- Quick reference and easy to navigate
- Excellent study material that helps with test prep
- On-the-go accessibility and handy to have on board
- Clear visuals and diagrams to explain complex rules
- Comprehensive coverage (international and inland) with good organization (table of contents and search)

### Cons

- No quizzes or built-in practice tests for self-assessment

## Similar extensions and apps

- [Navigation Rules Pro](https://chrome-stats.com/d/id494309072) — 4.80 / 5
- [Simple Colregs](https://chrome-stats.com/d/id6748556558)
- [ColRegs: Rules of the Road](https://chrome-stats.com/d/id494839562)
- [COLREG](https://chrome-stats.com/d/id6446209111)
- [ColRegs: Nav Lights & Shapes](https://chrome-stats.com/d/id485271634)
- [Maritime Master - COLREGs](https://chrome-stats.com/d/id6756098554)
- [U.S. Inland Navigational Rules](https://chrome-stats.com/d/id658906836) — 4.30 / 5
- [COLREGS: Rules of the Road](https://chrome-stats.com/d/id6760242895)
- [Marinus: maritime rules](https://chrome-stats.com/d/id536108872) — 4.40 / 5
- [Sunsail Sailing School](https://chrome-stats.com/d/id1239861710) — 3.00 / 5
- [COLREG 72: safety at sea](https://chrome-stats.com/d/id1010178487) — 4.80 / 5
- [AMC Collision Regulations](https://chrome-stats.com/d/id6755447161)

---

Source: [Chrome-Stats](https://chrome-stats.com/d/id327936562)