---
title: "Master-Nav: Colregs - Отзывы, Доход и Загрузки приложения in Чехия | Apple App Store"
description: "Master-Nav is a progressive COLREGS learning system developed by a Master Mariner. The COLREGS are notoriously difficult to learn and retain — Master-Nav makes it significantly easier through an inter"
---

# Master-Nav: Colregs — Чехия
> COLREGS - the easy way!

![Master-Nav App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/60/6e/64/606e640f-9db1-284d-6fa1-9604d5e35af8/AppIcon-0-0-1x_U007emarketing-0-8-0-85-220.png/434x0w.png)

**Developer:** [Peterjohn Chisholm](https://apptail.io/ru/developer/peterjohn-chisholm-xgab)
**Category:** Education
**Rating:** 5.0/5 (2 ratings)
**Price:** Free
**Bundle ID:** eu.pjcc.NavMaster
**Store:** Apple App Store
**Country:** Чехия
**Version:** 147 (released 2026-04-11)
**Original Release:** 2022-01-08
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/cz/app/app/id1602390396)
**AppTail Page:** [https://apptail.io/ru/app/master-nav-VYXc/czechia](https://apptail.io/ru/app/master-nav-VYXc/czechia)

## Master-Nav Description
Master-Nav is a progressive COLREGS learning system developed by a Master Mariner. The COLREGS are notoriously difficult to learn and retain — Master-Nav makes it significantly easier through an interactive system built around how your brain actually works.

Instead of guessing through random question banks, Master-Nav guides you step by step through every rule from start to finish. Wrong answers are revisited until the rules stick — properly.

Complex regulations are broken down into learnable chunks — bite-sized sections supported by mnemonics, memory aids and interactive visuals designed around how the brain actually retains information.

Every incorrect answer is shown graphically alongside the correct one — immediately clear, no confusion. And with a single tap, the relevant COLREGS rule is accessible from any question at any time.

Master-Nav covers COLREGS Parts A to D — General, Steering & Sailing, Lights & Shapes and Sound & Light Signals — plus Annex IV Distress Signals. Over 1000 questions in multiple formats, with a dedicated Practice Section that tracks right, wrong and unanswered so you always know where to focus.

COLREGS — the easy way.

## Master-Nav Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/db/05/bc/db05bc7a-3949-9811-c915-e72d8216313b/01.png/1284x2778.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/7f/f6/c7/7ff6c7e3-b109-c096-957e-ddb0a0650b8b/03.png/1284x2778.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/87/84/37/87843798-ee24-9ebc-d99c-0aa16e197150/03.png/1284x2778.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/b1/71/dd/b171dd94-afbb-577c-1386-89b6e974fc23/05.png/1284x2778.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/4f/2b/c3/4f2bc366-fbcb-13f1-31e5-ba1a81a4367a/09.png/1284x2778.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/52/1b/9d/521b9d28-8db5-9136-63ff-a71a7f5122b8/07.png/1284x2778.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/d2/a2/c8/d2a2c897-a46d-e47c-9228-7e6bc773f233/02.png/1284x2778.png)
- [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/80/fc/3f/80fc3f9c-2ac2-333d-5017-c43ce41f31b5/06.png/1284x2778.png)
- [Screenshot 9](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/ea/47/82/ea4782a6-b609-651c-29d7-dc59cb23e0a7/08.png/1284x2778.png)

## Master-Nav Rating Breakdown in Чехия
- 5 stars: 2 (100%)
- 4 stars: 0 (0%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 stars: 0 (0%)



## Master-Nav Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Топ платных | Сингапур | Education | #6 |
| Топ платных | Малайзия | Education | #12 |
| Топ платных | Южно-Африканская Республика | Education | #14 |
| Топ платных | Сингапур | Overall | #15 |
| Топ платных | Чехия | Education | #18 |
| Топ платных | Канада | Education | #59 |
| Топ платных | Малайзия | Overall | #82 |
| Топ платных | Австралия | Education | #84 |
| Топ платных | Великобритания | Education | #90 |
| Топ платных | Филиппины | Education | #98 |
| Топ платных | Греция | Education | #122 |
| Топ платных | Южно-Африканская Республика | Overall | #127 |
| Топ платных | Нигерия | Education | #145 |
| Топ платных | Индия | Education | #155 |
| Топ платных | Румыния | Education | #194 |
| Топ платных | Германия | Education | #195 |
| Топ платных | Чехия | Overall | #206 |
| Топ платных | ОАЭ | Education | #213 |
| Топ платных | Украина | Education | #255 |
| Топ платных | Ирландия | Education | #284 |
| Топ платных | Новая Зеландия | Education | #297 |
| Топ платных | Саудовская Аравия | Education | #347 |
| Топ платных | Нидерланды | Education | #350 |
| Топ платных | Финляндия | Education | #360 |
| Топ платных | Польша | Education | #378 |
| Топ платных | Венгрия | Education | #385 |
| Топ платных | Испания | Education | #409 |
| Топ платных | Египет | Education | #413 |
| Топ платных | Индонезия | Education | #448 |
| Топ платных | Бельгия | Education | #463 |
| Топ платных | Великобритания | Overall | #465 |
| Топ платных | Португалия | Education | #466 |
| Топ платных | Италия | Education | #473 |


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## Master-Nav Available In
- [Великобритания](https://apptail.io/ru/app/master-nav-VYXc/united-kingdom)
- [Соединенные Штаты](https://apptail.io/ru/app/master-nav-VYXc/united-states)
- [Австралия](https://apptail.io/ru/app/master-nav-VYXc/australia)
- [Канада](https://apptail.io/ru/app/master-nav-VYXc/canada)
- [Южно-Африканская Республика](https://apptail.io/ru/app/master-nav-VYXc/south-africa)
- [Франция](https://apptail.io/ru/app/master-nav-VYXc/france)
- [Индия](https://apptail.io/ru/app/master-nav-VYXc/india)
- [Филиппины](https://apptail.io/ru/app/master-nav-VYXc/philippines)
- [Германия](https://apptail.io/ru/app/master-nav-VYXc/germany)
- [Италия](https://apptail.io/ru/app/master-nav-VYXc/italy)
- [Малайзия](https://apptail.io/ru/app/master-nav-VYXc/malaysia)
- [Испания](https://apptail.io/ru/app/master-nav-VYXc/spain)
- [Нидерланды](https://apptail.io/ru/app/master-nav-VYXc/netherlands)
- [Швеция](https://apptail.io/ru/app/master-nav-VYXc/sweden)
- [ОАЭ](https://apptail.io/ru/app/master-nav-VYXc/united-arab-emirates)
- [Новая Зеландия](https://apptail.io/ru/app/master-nav-VYXc/new-zealand)
- [Бразилия](https://apptail.io/ru/app/master-nav-VYXc/brazil)
- [Финляндия](https://apptail.io/ru/app/master-nav-VYXc/finland)
- [Греция](https://apptail.io/ru/app/master-nav-VYXc/greece)
- [Венгрия](https://apptail.io/ru/app/master-nav-VYXc/hungary)
- [Ирландия](https://apptail.io/ru/app/master-nav-VYXc/ireland)
- [Чехия](https://apptail.io/ru/app/master-nav-VYXc/czechia)
- [Таиланд](https://apptail.io/ru/app/master-nav-VYXc/thailand)
- [Турция](https://apptail.io/ru/app/master-nav-VYXc/turkey)
- [Украина](https://apptail.io/ru/app/master-nav-VYXc/ukraine)
- [Австрия](https://apptail.io/ru/app/master-nav-VYXc/austria)
- [Мальта](https://apptail.io/ru/app/master-nav-VYXc/malta)
- [Аргентина](https://apptail.io/ru/app/master-nav-VYXc/argentina)
- [Египет](https://apptail.io/ru/app/master-nav-VYXc/egypt)
- [Норвегия](https://apptail.io/ru/app/master-nav-VYXc/norway)
- [Швейцария](https://apptail.io/ru/app/master-nav-VYXc/switzerland)
- [Тайвань](https://apptail.io/ru/app/master-nav-VYXc/taiwan)
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- [Польша](https://apptail.io/ru/app/master-nav-VYXc/poland)
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- [Вьетнам](https://apptail.io/ru/app/master-nav-VYXc/vietnam)
- [Бельгия](https://apptail.io/ru/app/master-nav-VYXc/belgium)
- [Сингапур](https://apptail.io/ru/app/master-nav-VYXc/singapore)
- [Северная Македония](https://apptail.io/ru/app/master-nav-VYXc/north-macedonia)
- [Азербайджан](https://apptail.io/ru/app/master-nav-VYXc/azerbaijan)
- [Бруней](https://apptail.io/ru/app/master-nav-VYXc/brunei)
- [Беларусь](https://apptail.io/ru/app/master-nav-VYXc/belarus)
- [Чили](https://apptail.io/ru/app/master-nav-VYXc/chile)
- [Китай](https://apptail.io/ru/app/master-nav-VYXc/china)
- [Колумбия](https://apptail.io/ru/app/master-nav-VYXc/colombia)
- [Дания](https://apptail.io/ru/app/master-nav-VYXc/denmark)
- [Доминиканская Республика](https://apptail.io/ru/app/master-nav-VYXc/dominican-republic)
- [Алжир](https://apptail.io/ru/app/master-nav-VYXc/algeria)
- [Эквадор](https://apptail.io/ru/app/master-nav-VYXc/ecuador)
- [Эстония](https://apptail.io/ru/app/master-nav-VYXc/estonia)
- [Гонконг (САР)](https://apptail.io/ru/app/master-nav-VYXc/hong-kong)
- [Хорватия](https://apptail.io/ru/app/master-nav-VYXc/croatia)
- [Индонезия](https://apptail.io/ru/app/master-nav-VYXc/indonesia)
- [Израиль](https://apptail.io/ru/app/master-nav-VYXc/israel)
- [Исландия](https://apptail.io/ru/app/master-nav-VYXc/iceland)
- [Япония](https://apptail.io/ru/app/master-nav-VYXc/japan)
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- [Тунис](https://apptail.io/ru/app/master-nav-VYXc/tunisia)

---

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