Version history
Maritime Master - OOW
50
ASO score
Text
71/100
Reviews
0/100
Graphic
60/100
Other
0/100
App Rating
4
Votes
6
App Age
5m 8d
Last Update
Dec 01, 2025
Compare with Category Top Apps
|
Metrics
|
Current App
|
Category Top Average
|
Difference
|
|---|---|---|---|
|
Rating
|
4
|
4.45
|
-10%
|
|
Number of Ratings (Voted)
|
6
|
468.5K
|
-100%
|
|
App Age
|
0y 5m
|
6y 3m
|
-93%
|
|
In-app Purchases Price
|
$0
|
$35
|
|
|
Update Frequency
|
25d
|
47d
|
-46%
|
|
Title Length
|
21
|
25
|
-16%
|
|
Subtitle Length
|
27
|
27
|
|
|
Description Length
|
2 074
|
2 574
|
-19%
|
|
Number of Screenshots
|
1131
|
1027
|
+10
%
|
|
Size
|
21MB
|
163MB
|
-87
%
|
Category Ranking in United States
7 days
Last 7 days
Last 30 days
Last 90 days
Last 180 days
Last year
| Top | Dec 11, 2025 | Dec 18, 2025 |
|---|---|---|
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No results were found!
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| Top | Dec 11, 2025 | Dec 18, 2025 |
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No results were found!
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| Top | Dec 11, 2025 | Dec 18, 2025 |
|---|---|---|
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No results were found!
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| Top | Dec 11, 2025 | Dec 18, 2025 |
|---|---|---|
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No results were found!
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Ranking Keywords in United States
| Keywords | App Rank |
|---|
Analyze this and other apps using Asolytics tools
Text ASO
Title
(
Characters:
21
of 30
)
Maritime Master - OOW
Subtitle
(
Characters:
27
of 30
)
Radar, COLREGs, OOW & Calcs
Description
(
Characters:
2074
of 4000
)
Study faster. Sail safer.
Practice radar plotting, run bridge calculations, and master COLREGs, all in one app built for OOW prep and day-to-day reference. Designed for deck cadets, maritime students, and working officers (OOW, 3/O, 2/O).
Radar plotting simulator:
Add multiple targets with custom courses and speeds
Automatic CPA/TCPA with clear high-risk warnings
Relative motion vectors and target trails to visualise situations
Training disclaimer: This simulator is for education only and must not be used for real-world navigation or collision-avoidance decisions.
Calculation suite:
Navigation: Speed–Time–Distance, ETA, Dead Reckoning, Course & Distance (Rhumb Line & Great Circle), Set & Drift & Fix Position
Terrestrial & Celestial: Compass Error, Parallel Indexing, Object Distance, Advance & Transfer, Meridian Passage & LOP sight-reduction helper
Stability & Ship Construction: FSE correction, Mean Draft, TPC/LCF usage, Trim & VCG
Meteorology: True Wind, Barometer corrections, Beaufort scale converter & Tides and Currents
Essential learning & reference library:
Regulations: SOLAS, MARPOL, STCW, ISM Code, ISPS Code, GMDSS (quick-reference guides)
Core nautical knowledge: Passage planning; ECDIS & charts; basic stability; compass deviation
Procedures: Emergency procedures; SOPEP & SMPEP; checklists for safe watchkeeping; logbook entries; equipment handover
Electronic navigation: AIS data interpretation; ECDIS functions; AIS/MMSI code reference
Master the Rules of the Road (COLREGs):
Shapes and sound signals
International Code of Signals (ICOS)
IALA buoyage systems (A & B)
Test yourself & prep for exams:
Flashcards, ICOS Hangman, and a Buoy Night-Light game
OOW progress tracker.
Who is it for?
Maritime students & deck cadets: build a strong foundation
Officers in training: prepare confidently for OOW certification
Active deck officers: quick reference, calculation practice, and knowledge refreshers
Anyone who wants to learn more about maritime and OOW
Download Maritime Master - OOW and advance your maritime knowledge with confidence.}
Read more
Other
Additional Information
Version history
2.3.0
Dec 01, 2025
Shiny new app icon – Hoisted a fresh ensign so you can spot us easily on your home screen.
Improved iPad layout in landscape – Things now look shipshape when you turn your iPad on its side.
Keyboard stowaway fixed – The keyboard now dismisses properly on calculation screens, instead of lingering like an uninvited deckhand.
New Features on Board
IALA Buoyage Nav Lights – Brush up on buoyage light patterns so you always know which side to pass on.
Navigation lights at night – Learn how vessels should light up after dark, so you can stay safe on the midnight watch.
Other small bug fixes and improvements.
Better support for iOS 26 features.
2.2.1
Nov 12, 2025
Bug fixes and improvements
- Fixed an issue with the quiz questions screen