U.S. App Store

Master-Nav App Reviews

The Master-Nav app recently received 4 positive reviews on iPhone, iPad, and Android devices. Users in the United States have given Master-Nav app an average rating of 4.82 out of 5 stars, based on a total of 51 ratings since its release on Jun 24 by Peterjohn Chisholm. Can you share your positive or negative thoughts about Master-Nav?

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Ratings and Reviews

Rated 4.50 out of 5

51 global ratings

5 Star

75%

4 Star

3 Star

25%

2 Star

Explore global reviews of the Master-Nav app: Spain, Sweden.

4 Positive User Reviews for Master-Nav

Great app

Easy to navigate, easy to understand, covers all the key elements needed to prep for the exam.

Feb 16, 2026 N. Version: 1.30 Reply

Great for SWOs going to BDOC

I couldn’t just read COLREGS and make it stick to my brain for sheee, thank god for this app and the creators of this dynamic way of memorizing rule by rule. Because if your going to be navigating a multi million-billion dollar ship make sure you have this memorized to the T!

Feb 16, 2026 Y. Version: 1.29 Reply

Great Refresher and Prep Tool

I’m getting ready to start training for my next assignment on a ship. This is an easy to use tool. I was just looking for the COLREGS test questions, but the Review modules are extremely helpful. It’s like having a high level Maritime Rules of the Road instructor on your phone.

Feb 16, 2026 S. Version: 1.29 Reply

Great app but could be better

Great app. Please make distinction of inland/international more apparent. Also, when completing every rule please allow for resetting the progress so that I can go back and “learn.” After I finished everything there was a window congratulating me on getting through everything but when I attempted to reset, the app did not allow it. Thank you.

Feb 16, 2026 B. Version: 1.29 Reply