CSM LearnStrike vs Master
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
CSM LearnStrike
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Step into the role of a maritime professional with the CSM Learnstrike app, featuring two interactive modules: COLREGs Challenge and PSC Challenge. COLREGs Challenge helps you learn and master the International Regulations for Preventing Collisions at Sea through dynamic, scenario-based gameplay. Navigate realistic maritime environments, make tactical decisions under time pressure, and gain practical knowledge for real-world situations. PSC Challenge guides you through the entire Port State Control (PSC) cycle β preparation, inspection process, and follow-up. Explore real PSC observations, propose corrective actions, and familiarize yourself with CSM Management System procedures and forms. Practice soft skills, gain insights into PSC performance, and build confidence for inspections. Separate modules are available for all seafarers and for officers only. Key Features: - Multiple gameplay modes based on real-world COLREGs and PSC applications - Scenario-based challenges with realistic maritime environments - Fast-paced decision-making, reaction tests, and tactical tasks - Progress tracking to monitor improvement - Insights into PSC statistics and performance - Guides you through the full PSC cycle: preparation, inspection, follow-up - Available in offline mode for a seamless experience both onboard and ashore - Designed for cadets, officers, maritime professionals, and enthusiastsβ
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
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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 β 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 β the easy way.
Screenshots
Verdict
The clearest difference is device support: CSM LearnStrike at 3 against Master's 1. CSM LearnStrike also leads on iOS requirement (14.0 vs 17.6). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
CSM LearnStrike ships an update every 3 weeks, Master fortnightly. The most recent releases landed on September 9, 2026 and September 6, 2026 respectively.
| Parameter | CSM LearnStrike | Master |
|---|---|---|
| Price | Free | Free |
| Positive reviews | β | 100.0% of reviews |
| Update frequency | Every 3 weeks | Fortnightly β better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | β | Free |
| Devices | iPhone, iPad, iPod β better | iPhone |
| Requires iOS | 14.0 β better | 17.6 |
| Further details β not scored | ||
| Size | 301 MB | 305 MB |
| Age rating | 4+ | 4+ |
| Developer | 4Growth.com | Peterjohn Chisholm |
In-app purchases
CSM LearnStrike
No in-app purchases
Master
No in-app purchases
Questions
Is CSM LearnStrike free?
Is Master free?
Do CSM LearnStrike or Master have ads?
Which is updated more often, CSM LearnStrike or Master?
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