# Navigation Rules Pro — Boating Regs and References

> Boating regulations, references, and communication tools for safe navigation. (iPhone/iPad app by Calculated Industries.)

- Source: https://appshunter.io/ios/app/navigation-rules-pro/id494309072 (this page in markdown: same URL + `.md`)
- Developer: [Calculated Industries](https://appshunter.io/developer/370406449)
- Category: Reference, Navigation
- Price: $4.99
- Rating: 4.80/5 from 442 App Store ratings · 40 written reviews indexed
- Age rating: 4+
- Requires: iOS 9.3 · 37 MB
- Languages: American English
- Released: 2012-01-18
- Data updated: 2026-08-29
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/navigation-rules-pro/id494309072/reviews.md

## What is Navigation Rules Pro?

Navigation Rules Pro has everything in our popular Navigation Rules app plus over 100 pages of additional important reference material.  Navigation Rules Pro contains a complete copy of the International Regulations for Preventing Collisions at Sea, 1972 (COLREGS), including amendments and the Inland Navigation Rules, in effect for all inland waters, including the Great Lakes plus the following information a boater needs:

* Sound and Light Signals Quick Reference
* Steering and Sailing Rules Quick Reference
* Aids to Navigation (AtoN)
* Bridge Lighting Quick Reference
* Lock Procedures
* U.S. Federal Requirements for Recreational Boats
* Communication information - DSC, Rescue 21, International Code Signals, semaphore flags, distress signals, phonetic alphabet, prowords,  international morse code.
* Weather and Oceanography
* Law Enforcement
* Boating Calculators
* Unit Conversions

Navigation Rules Pro includes the COLREGs most recent version dated - June 28th, 2019.

This app includes an annotated table of contents and a search function to help the reader quickly find the rule and related references.  A Favorites page allows quick access to commonly referenced pages.  Use the email function to share a page with others.

If you are a boater you need to know this information.

## Key features

- International and Inland Navigation Rules
- Sound and Light Signals Quick Reference
- Aids to Navigation (AtoN)
- Communication Information (DSC, Morse Code, etc.)
- Boating Calculators
- Unit Conversions
- Search and Favorites functionality

## Chart rankings

- #188 in Top Paid · Reference (US App Store)

## Recent user reviews (10 of 40)

All indexed reviews: https://appshunter.io/ios/app/navigation-rules-pro/id494309072/reviews.md

### 1/5 — Literally a copy of the USCG book

*2022-12-23, version 2.1.9*

I have no idea why this was ever rated above one star.  You will be spending your money on a set of calculators.  For the money, they should have created their own original content with graphics and illustration videos.

### 3/5 — Note - based on IALA region B

*2021-12-15, version 2.1.9*

Clunky to use

### 5/5 — Excellent App

*2021-12-14, version 2.1.9*

This is a hidden jewel- thank you so much for the efforts, the updates, and functionality with a great index. The calculator section is awesome- course to steer, distances to shore, all manner of great navigation tools. Please keep servicing this app- so helpful!

### 5/5 — RSVNY

*2021-09-08, version 2.1.6*

Fantastic

### 4/5 — Good reference

*2021-04-26, version 2.1.4*

Contains all the ColRegs, sometimes with illustrations, and some other information including signal flags, morse code, weather and other legislation/procedure guides.
Can be difficult to find some info when they are hidden in sub-headings.

### 5/5 — USCG exam Great product

*2021-02-17, version 2.1.4*

Great product well informed

### 3/5 — Awful UI

*2020-02-26, version 2.1.1*

Lots of handy info, but getting to it is clunky and at times very annoying.

### 5/5 — A Great Way to Learn Safe Boating

*2019-10-09, version 2.1.1*

The NavIgation Rules in the Code of Federal Regulations are written in a bureaucratic style that can be difficult for beginning boaters to envision. This app provides visualization tools such as images of boats with lights that can help  beginners understand the rules and how to apply them on the water.

### 5/5 — Question

*2019-06-11, version 2.1.1*

I love this app and use it on my iPhone. I have an android tablet but can’t seem to find it in the Google play store. Do you make it for android and is it under a different name? Thank you.

### 1/5 — Very poor

*2019-05-30, version 2.1.1*

Mostly text regs. No images or visual aids

## Frequently asked questions about Navigation Rules Pro

### What information does Navigation Rules Pro provide?

Navigation Rules Pro offers a complete copy of the International Regulations for Preventing Collisions at Sea, 1972 (COLREGs) and the Inland Navigation Rules. It also includes quick references for sound and light signals, steering and sailing rules, aids to navigation, and bridge lighting.

### What are the key features of Navigation Rules Pro?

Key features include a comprehensive collection of navigation rules, quick reference guides for various signals and procedures, communication information like DSC and Morse code, boating calculators, unit conversions, and a search function for easy access to information. It also has a favorites page and an email function to share content.

### Is Navigation Rules Pro free to use?

Based on the provided information, Navigation Rules Pro is a paid application. There are no mentions of in-app purchases or advertisements, indicating a one-time purchase model.

### Who is the target audience for this app?

The app is designed for boaters, including recreational boaters and potentially professional mariners, who need to be knowledgeable about navigation rules and regulations to ensure safe operation of their vessels.

### What kind of reference material is included besides navigation rules?

In addition to the COLREGs and Inland Navigation Rules, the app includes over 100 pages of supplementary reference material. This covers topics such as U.S. Federal Requirements for Recreational Boats, communication protocols, weather and oceanography, law enforcement information, and various boating calculators and unit conversions.

## Version history (last 5 releases)

### 2.1.9 — 2021-12-08

Fix to Fishing Vessels Engaged in Fishing - Rule 26

### 2.1.8 — 2021-12-02

Fix to share feature

### 2.1.7 — 2021-10-05

Under the cover revision

### 2.1.6 — 2021-05-05

Fixed SOS morse code.

### 2.1.5 — 2021-04-30

Updated a few images.

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All apps by Calculated Industries: https://appshunter.io/developer/370406449

## Related topics

[navigation rules pro](https://appshunter.io/ios/topics/navigation-rules-pro) · [navigation rules](https://appshunter.io/ios/topics/navigation-rules) · [nav rules](https://appshunter.io/ios/topics/nav-rules) · [boating rules](https://appshunter.io/ios/topics/boating-rules) · [navigation lights](https://appshunter.io/ios/topics/navigation-lights)

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*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 2026-08-29.*