Seabook+ vs Mariner Prep
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Comprehensive maritime information
- Navigational and technical computations
- Offline accessibility
- User-friendly interface
- Information for marine professionals
- Knowledge for sea enthusiasts
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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.
Mariner Prep
Master the Rules of the Road with targeted practice questions designed for merchant mariners and Naval Officers. This app offers realistic multiple-choice scenarios, including image-based questions for visual aids like lights and signals, to help you pass the relevant module.
- Targeted practice questions
- Realistic multiple-choice scenarios
- Image-based questions for signals
- Focus on Rules of the Road module
- Built for merchant mariners and Naval Officers
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Master Rules of the Road—built for merchant mariners and Naval Officers. Mariner Prep focuses on one goal: helping you pass the Rules of the Road module with efficient, targeted practice. Work through realistic multiple-choice questions—including image-based items for lights, shapes, and day signals.
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Verdict
The clearest difference is review sentiment: Seabook+ at 53% against Mariner Prep's 0%. Seabook+ also leads on rating (4.0 vs 2.0) and ratings volume (3 vs 1). Mariner Prep's advantage is price ($1.99 vs $6.99). On ads, in-app purchases, monetization model and device support 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
Seabook+ costs $6.99 and Mariner Prep $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Seabook+ holds the better App Store score, 4.0 against 2.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews point the same way: 53% of Seabook+'s written reviews are positive against 0% of Mariner Prep's.
| Parameter | Seabook+ | Mariner Prep |
|---|---|---|
| Price | $6.99 | $1.99 — better |
| Rating | 4.0 (3 ratings) — better | 2.0 (1 ratings) |
| Positive reviews | 53.3% of reviews — better | 0.0% of reviews |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 35 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 18.4 |
| Further details — not scored | ||
| Size | 37 MB | 11 MB |
| Age rating | 12+ | 4+ |
| Developer | Ozgur GUNES | Babak Khoshroo |
Customer experience
Seabook+
Mariner Prep
In-app purchases
Seabook+
No in-app purchases
Mariner Prep
No in-app purchases
