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Master-Nav: IALA MBS icon

Master-Nav: IALA MBS

Peterjohn Chisholm

Category: Education
Sign in to watchView on the App Store (opens in a new tab)
Rankings updated

Price and ratings

Price
CA$0.99
Rating
5.0 out of 5
Ratings
8United Kingdom

Versions

Released
19 Jan 20268 months ago
Last update
2 months agoVersion 1.2
Requires
iOS 17.6 or later

Details

Size
229.8 MB
Languages
1
Website
master-nav.com (opens in a new tab)

Master-Nav: IALA MBS makes learning the IALA Maritime Buoyage System clear, visual, and easy. Our goal is to simplify your preparation for maritime qualifications and maximise your success by teaching buoyage the way you actually use it at sea, through recognition, meaning, and correct action. Master MBS uses interactive visuals, memory aids, and exam ready answer phrases to help you identify marks quickly and explain them correctly. Colours, shapes, topmarks, light characteristics, and chart

Countries1In 1 chart right now
Best rank now#63Canada Paid · Education
Ratings, 7 days—Needs a week of rating history
Longest chart run2 daysCanada Paid · Education

Competitors

Full chart

Top of Paid · Education in Canada. Master-Nav: IALA MBS is #63 there. Changes are over 7 days.

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Store listing

How the app presents itself on the App Store. Select a screenshot to open it full size.

Master-Nav: IALA MBS screenshot 1 of 9Master-Nav: IALA MBS screenshot 2 of 9Master-Nav: IALA MBS screenshot 3 of 9Master-Nav: IALA MBS screenshot 4 of 9Master-Nav: IALA MBS screenshot 5 of 9Master-Nav: IALA MBS screenshot 6 of 9Master-Nav: IALA MBS screenshot 7 of 9Master-Nav: IALA MBS screenshot 8 of 9Master-Nav: IALA MBS screenshot 9 of 9

What's new

Version 1.2 · 31 Jul 2026 · 2 months ago

Fixed several buoyage terminology and spelling errors in the learning content, and small bug fixes.

Current rankings

Every chart this app is in right now, best position first.

Master-Nav: IALA MBS chart positions
ChartRank24 h7 daysBestDays on chart
Canada· Paid · Education#63Change unknownChange unknown#362

Rank history

Higher on the chart is better: #1 is at the top.

Sign in to see 30 days, 90 days and all history.

Canada · Paid · Education: best #36, latest #63, over 2 snapshots since 8 Oct. No snapshots from 8 Oct to 9 Oct; the line joins the snapshots on either side.

Canada · Paid · Education: best #36, latest #63, over 2 snapshots since 8 Oct. No snapshots from 8 Oct to 9 Oct; the line joins the snapshots on either side.

Ranking events

Entries, big moves, #1s and new versions we've recorded.

  1. Dropped #36 → #63 in Paid · EducationCanada

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