Master vs MLS eCampus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Master
Learn maritime navigation rules with an interactive system designed for effective retention. This app breaks down complex regulations into manageable sections with visual aids and mnemonics. It revisits incorrect answers and provides instant graphical feedback, making the learning process intuitive and efficient.
- Interactive learning system
- Step-by-step rule guidance
- Mnemonics and memory aids
- Interactive visuals
- Graphical feedback on answers
- Practice section with progress tracking
Read full descriptionHide full description
Master-Nav is a progressive COLREGS learning system developed by a Master Mariner. The COLREGS are notoriously difficult to learn and retain — Master-Nav makes it significantly easier through an interactive system built around how your brain actually works. Instead of guessing through random question banks, Master-Nav guides you step by step through every rule from start to finish. Wrong answers are revisited until the rules stick — properly. Complex regulations are broken down into learnable chunks — bite-sized sections supported by mnemonics, memory aids and interactive visuals designed around how the brain actually retains information. Every incorrect answer is shown graphically alongside the correct one — immediately clear, no confusion. And with a single tap, the relevant COLREGS rule is accessible from any question at any time. Master-Nav covers COLREGS Parts A to D — General, Steering & Sailing, Lights & Shapes and Sound & Light Signals — plus Annex IV Distress Signals. Over 1000 questions in multiple formats, with a dedicated Practice Section that tracks right, wrong and unanswered so you always know where to focus. COLREGS — the easy way.
MLS eCampus
Access mobile-friendly courses, lectures, audio, videos, and graphics to prepare for exams. Track progress with quizzes and download study materials for offline use. Improve boating knowledge or earn licenses on the go.
- Mobile-friendly courses
- Access lectures, audio, video, graphics
- Quiz feedback and progress tracking
- Downloadable study aids
- Offline content access
- License preparation
Read full descriptionHide full description
Mariners Learning System | Anywhere. Any Time. Any Device. Enhance your learning experience with our mobile-friendly courses - The MLS App provides you with the knowledge and tools needed to study for your exam. You can access lectures, audio, videos, and graphics depending on the course you are enrolled in. Get feedback on your quizzes and mark your progress so you can set yourself up for success when you’re ready to take the proctored exam. Download audio, eBooks, and additional study aids to your device. As an additional convenience, you can access content offline while commuting or when your Internet connection is unstable, even on an aeroplane! Make your breaks more productive, learn during your downtime, and discover what steps you need to make to improve your boating knowledge or earn your USCG or FCC license. The MLS app makes it easy to learn your way on the go. * While the mobile app is a great asset throughout your educational journey, students CANNOT take the final proctored exam on a mobile device.
Screenshots
Verdict
The clearest difference is review sentiment: Master at 97% against MLS eCampus's 0%. Master also leads on rating (4.7 vs 1.6) and update cadence (fortnightly vs every 15 months). MLS eCampus's advantage is price (Free vs $1.99) and iOS requirement (13.0 vs 15.0). On ads, in-app purchases 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
MLS eCampus is free to download; Master costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Master holds the better App Store score, 4.7 against 1.6. That said, the two scores are not equally well evidenced: Master has 94 ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 97% of Master's written reviews are positive against 0% of MLS eCampus's.
Master ships an update fortnightly, MLS eCampus every 15 months. The most recent releases landed on September 22, 2026 and June 11, 2026 respectively.
| Parameter | Master | MLS eCampus |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 4.7 (94 ratings) — better | 1.6 (10 ratings) |
| Positive reviews | 96.9% of reviews — better | 0.0% of reviews |
| Number of ratings | 94 — better | 10 |
| Update frequency | Fortnightly — better | Every 15 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 117 MB | 72 MB |
| Age rating | 4+ | 4+ |
| Developer | Peterjohn Chisholm | Mariners School Inc. |
Customer experience
Master
MLS eCampus
In-app purchases
Master
No in-app purchases
MLS eCampus
No in-app purchases








