Nautical Ship Flags vs Master
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Nautical Ship Flags
Explore maritime signal codes and Morse code with interactive quizzes and detailed flag information. Track your learning progress with an analytics view and practice signaling using your phone's flashlight. This app offers full offline functionality for continuous learning.
- Interactive quizzes
- Flag details and reference
- Flashlight Morse signaling
- Progress tracking
- Offline functionality
- Analytics view
Read full descriptionHide full description
A complete guide to maritime flags, including letters, numbers, substitutes, and Morse code, now with an enhanced Analytics View to track your progress and identify areas for improvement. Enjoy interactive quizzes and detailed flag information. This app also lets you view Morse code signals through your phone’s flashlight, making it perfect for boaters, sailors, and anyone fascinated by maritime navigation. Features: • Interactive Tests • Randomized Question Types • Flashlight Morse Signaling • Flag Details and Symbol Reference • Review and Progress Tracking • Analytics View for tracking your progress • Bright, minimalistic design • Full offline functionality Links for more info: - Terms of Use & Privacy policy: https://nauticalshipflags.com - Link for more info: https://support.apple.com/en-gb/HT202039
Master
Practice maritime navigation rules and buoyage systems with this app. It helps you identify knowledge gaps and track your progress in mastering essential regulations for mariners.
- USCG Navigation Rules practice
- IALA Maritime Buoyage System tests
- Knowledge gap identification
- Progress tracking
- Developed by Master Mariner
Read full descriptionHide full description
Master-Nav: COLREGS IALA Tests is a free practice app developed by a Master Mariner with 30 years of seagoing experience. Test your knowledge of the USCG Navigation Rules and IALA Maritime Buoyage System — the regulations every mariner needs to know. A straightforward way to find out where you stand, identify gaps in your knowledge and track your progress over time. Master COLREGS & IALA — the easy way.
Screenshots
Verdict
The clearest difference is review sentiment: Master at 100% against Nautical Ship Flags's 33%. Master also leads on in-app purchases (none vs 2) and rating (5.0 vs 4.6). Nautical Ship Flags's advantage is ratings volume (15 vs 1) and device support (3 vs 1). On price, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Nautical Ship Flags sells 2 in-app purchases, starting at $0.99 per 7 days. Master asks for nothing beyond the download.
Master holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Nautical Ship Flags has 15 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 33% of Nautical Ship Flags's written reviews are positive against 100% of Master's.
Nautical Ship Flags ships an update every 3 weeks, Master fortnightly. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.
| Parameter | Nautical Ship Flags | Master |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (15 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 33.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 15 — better | 1 |
| Update frequency | Every 3 weeks | Fortnightly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.2 — better | 17.6 |
| Further details — not scored | ||
| Size | 7 MB | 305 MB |
| Age rating | 4+ | 4+ |
| Developer | Stanislav Cekunov | Peterjohn Chisholm |
Customer experience
Nautical Ship Flags
Master
In-app purchases
Nautical Ship Flags
- Weekly$0.997 Days
- Lifetime$2.99
Master
No in-app purchases
Questions
Is Nautical Ship Flags free?
Is Master free?
Which has better reviews, Nautical Ship Flags or Master?
Do Nautical Ship Flags or Master have ads?
Which is updated more often, Nautical Ship Flags or Master?
Other comparisons
