--- title: "Master-Nav: Colregs - Отзывы, Доход и Загрузки приложения in Италия | 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 — Италия ![Master-Nav App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/3b/52/df/3b52df68-5f99-f530-8856-676e37b0a71e/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 (5 ratings) **Price:** €1.99 **Bundle ID:** eu.pjcc.NavMaster **Store:** Apple App Store **Country:** Италия **Version:** 1.50 (released 2026-06-15) **Original Release:** 2022-01-08 **Languages:** English **App Store Link:** [Download on Apple App Store](https://apps.apple.com/it/app/app/id1602390396) **AppTail Page:** [https://apptail.io/ru/app/master-nav-colregs-VYXc/italy](https://apptail.io/ru/app/master-nav-colregs-VYXc/italy) ## 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 Италия - 5 stars: 5 (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 | Канада | Education | #22 | | Топ платных | Великобритания | Education | #32 | | Топ платных | Италия | Education | #46 | | Топ платных | Германия | Education | #52 | | Топ платных | Южно-Африканская Республика | Education | #68 | | Топ платных | Филиппины | Education | #87 | | Топ платных | Греция | Education | #99 | | Топ платных | Великобритания | Overall | #120 | | Топ платных | Австралия | Education | #133 | | Топ платных | Нигерия | Education | #145 | | Топ платных | Индия | Education | #155 | | Топ платных | Румыния | Education | #171 | | Топ платных | Сингапур | Education | #215 | | Топ платных | ОАЭ | Education | #217 | | Топ платных | Украина | Education | #239 | ## Master-Nav Discovered Keywords - 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