Comparison

Seabook+ vs Maritime Academy

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Seabook+

This app provides comprehensive maritime information for professionals and enthusiasts. It offers tools for navigational and technical computations, designed for easy use at sea with offline accessibility and a user-friendly interface.

Highlights
  • Comprehensive maritime information
  • Navigational and technical computations
  • Offline accessibility
  • User-friendly interface
  • Information for marine professionals
  • Knowledge for sea enthusiasts
Features
Read full description

Seabook is an information and knowledge source for marine professionals, sailors as well as sea enthusiasts. Seabook Master contains comprehensive and detailed information on the profession. Seabook fits to use at sea with offline accessibility and best user interface. The tools help navigational and technical computations and conversations at ease.

About

Maritime Academy

Learn maritime signal flags and the International Code of Signals through engaging levels and challenges. This app offers a structured approach to mastering flag meanings, abbreviations, and communication methods used at sea. It's designed for efficient memorization and progress, suitable for various maritime enthusiasts.

Highlights
  • 104 levels and 35 challenges
  • Covers Letters, Numbers, Words, Substitutes, Single Flag Meanings, Abbreviations
  • Progressive learning and focused repetition
  • Explore screen for self-paced learning
  • Works completely offline
  • No ads
Features
Read full description

Features: - designed for mariners, travellers, yachtsmen, pleasure cruisers and anyone who enjoys spending time around the waterfront. - 104 levels and 35 challenges teaching and training maritime flag signalling and the International Code of Signals (ICS). - 6 chapters including Letters, Numbers, Words, Substitutes, Single Flag Meanings and Abbreviations. - effective and fun teaching and training strategy: learn and train first with ease and then challenge yourself with pressure. - calculated amount of repetition for smooth and efficient memorization and progress. - explore all the letters, numbers, substitutes and abbreviations at your own pace on the Explore screen. - info screen offering detailed explanation of how to make the most of the app. - absolutely no ads. - works completely offline. -------- About Maritime Academy The app teaches maritime flag signalling (generally flaghoist signalling), which is the principal means other than radio by which ships communicate to each other or to shore. Virtually all signalling by non-naval vessels is now organized under the International Code of Signals (whether by flaghoist, semaphore, signal lamp, or other means), which specifies a standard set of flags and codes and is the most recent evolution of a wide variety of maritime flag signalling systems. Naval vessels generally use an extended set of flags and their own codes. -------- Teaching method The two key teaching and training concepts are progressive introduction and focused repetition. The learning material is categorized into chapters and then broken down into manageable units (levels) to ensure efficient learning and training. -------- Learning material In general, the learning progresses from single-flag content to multi-flag content. That is to say, from letters & numbers to words & substitutes, and then to single flag meanings & abbreviations. The content is arranged for optimal efficiency and we strongly recommend you to go through the levels in this order. - Letters (8 levels + 4 challenges) - Numbers (3 levels + 1 challenge) - Words (30 levels) - Substitutes (1 level) - Single Flag Meanings (8 levels + 4 challenges) - Abbreviations (54 levels + 26 challenges) -------- Levels and challenges In short, a level focuses on introducing and training new letters/numbers/abbreviations, while a challenge tests what you’ve learnt. In the learning screen, the knowledge you should focus on is highlighted and in the training screen, you will practice by answering a few questions (like a quiz game). In a challenge, you must make less than 3 mistakes to pass it. -------- Training types There are three training types, that is to say, key, typing and button. - In Letters & Numbers levels, you need to press the keys of the keyboard on the screen to answer the questions. - In Words & Substitutes levels, you need to type whole words to answer the questions. - In Single Flag Meanings & Abbreviations levels, you need to choose the correct meaning by clicking on a button. -------- The Explore screen The Explore screen allows users to check out the International Flags and Pennants of the 26 letters of the English Alphabet, numbers (0-9), substitutes (3), as well as the International Code of Signals including 25 single flag meanings and 201 most frequently used abbreviations. Simply click on the blocks to start exploring. -------- Download Maritime Academy now and start learning the signal flags! Privacy Policy: https://www.dong.digital/maritimeacademy/privacy/ Terms of Use: https://www.dong.digital/maritimeacademy/tos/

Screenshots

Seabook+4 screens
Maritime Academy4 screens

Verdict

The call

The clearest difference is review sentiment: Maritime Academy at 100% against Seabook+'s 53%. Maritime Academy also leads on price (Free vs $6.99) and rating (4.9 vs 4.0). Seabook+'s advantage is in-app purchases (none vs 1). On update cadence, ads, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Maritime Academy is free to download; Seabook+ costs $6.99 up front. Maritime Academy sells 1 one-off in-app purchase. Seabook+ asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Maritime Academy holds the better App Store score, 4.9 against 4.0. That said, the two scores are not equally well evidenced: Maritime Academy has 192 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 53% of Seabook+'s written reviews are positive against 100% of Maritime Academy's.

UpkeepUpdate frequency

Seabook+ ships an update every 35 months, Maritime Academy every 42 months. Both last shipped on November 7, 2026.

Scorecard6 real differences · 4 level
Seabook+ versus Maritime Academy: the parameters behind the verdict, then further details
ParameterSeabook+Maritime Academy
Price$6.99Free — better
Rating4.0 (3 ratings)4.9 (192 ratings) — better
Positive reviews53.3% of reviews100.0% of reviews — better
Number of ratings3192 — better
Update frequencyEvery 35 months — betterEvery 42 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.013.0
Further details — not scored
Size37 MB26 MB
Age rating12+4+
DeveloperOzgur GUNESXiang Dong

Customer experience

Seabook+

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews15 reviews
Positive53.3%
Neutral13.3%
Negative33.3%

Maritime Academy

All ratings189 ratings
Positive97.9%
Neutral1.6%
Negative0.5%
Written reviews14 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Seabook+

No in-app purchases

1 purchases

Maritime Academy

One-time1
  • Lifetime Premium$2.99

Questions

Is Seabook+ free?
Seabook+ costs $6.99, with no in-app purchases.
Is Maritime Academy free?
Maritime Academy is free to download, with in-app purchases available.
Which has better reviews, Seabook+ or Maritime Academy?
Maritime Academy is rated higher. Seabook+ averages 4.0 out of 5 from 3 ratings, while Maritime Academy averages 4.9 from 192 ratings.
Do Seabook+ or Maritime Academy have ads?
Neither Seabook+ nor Maritime Academy shows ads.
Which is updated more often, Seabook+ or Maritime Academy?
Seabook+ ships an update every 35 months, and Maritime Academy every 42 months. Most recently, Seabook+ was updated on November 7, 2026 and Maritime Academy on November 7, 2026.

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