Comparison

Marinus vs Maritime Trainer

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

Head to head
About

Marinus

This app provides comprehensive guidance on maritime navigation rules and signals. It offers detailed information on flags, lights, sounds, and buoyage systems, along with interactive quizzes and a map feature. Designed for sailors, it ensures safe navigation on any vessel.

Highlights
  • Maritime flags and meanings
  • Weather scales and cloud identification
  • Sound signal guidance
  • Vessel navigation light diagrams
  • Day shape identification
  • Safe navigation maneuvers
  • Morse code decoder
  • IALA Buoyage System
  • Radio communication guidelines
  • COLREGs text
Features
Read full description

Not just another app for navigation rules… this is THE app for navigation rules! Created by sailors, for sailors, Marinus COLREGs is designed to provide clear and instant answers to your questions anytime, anywhere. It's the essential app for your sailboat or motorboat. Key Features: • Flags – All maritime flags with their meanings. • Meteo – Beaufort and Douglas scales, plus cloud identification. • Sounds – Navigate safely with sound signal guidance. • Lights – Detailed views of every vessel's navigation lights from all angles. • Day Shapes – Learn and identify the correct day shapes for any situation. • Maneuvers – Clear guidance on safe navigation maneuvers. • Morse – Decode Morse signals with ease. • Buoys (IALA) – Understand the International Buoyage System. • Radio – Key radio communication guidelines. • ColRegs – Full text of the International Regulations for Preventing Collisions at Sea (IRPCS). • Quiz – Test your knowledge with interactive quizzes. • Map – Visualize navigation concepts on an interactive map. Access PRO Features Unlock all PRO features with an affordable annual subscription. Your support helps us maintain and improve the app, keeping it the trusted tool for sailors around the world. Join thousands of sailors who trust Marinus ColRegs every day on their iPhone. Whether you're an experienced seafarer or just starting your nautical journey, this is the app you’ve been looking for! For any questions, feel free to contact us at info@marinus.es.

About

Maritime Trainer

Read full description

Maritimetrainer is a remote training application designed for the maritime industry, covering essential training processes for recruitment, orientation, and compliance with industry standards. You can contact us at mobile@maritimetrainer.com for your suggestions or if you experience any issues.

Screenshots

Marinus4 screens
Maritime Trainer3 screens

Verdict

The call

The clearest difference is in-app purchases: Maritime Trainer at none against Marinus's 1. Maritime Trainer also leads on ads (none vs shown) and update cadence (fortnightly vs every 5 weeks). Marinus's advantage is iOS requirement (13.0 vs 15.5). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Marinus sells 1 in-app purchase, starting at $8.99 per year. Maritime Trainer asks for nothing beyond the download.

UpkeepUpdate frequency

Marinus ships an update every 5 weeks, Maritime Trainer fortnightly. The most recent releases landed on November 1, 2026 and October 27, 2026 respectively.

Scorecard4 real differences · 6 level
Marinus versus Maritime Trainer: the parameters behind the verdict, then further details
ParameterMarinusMaritime Trainer
PriceFreeFree
Rating4.4 (215 ratings) — better—
Positive reviews65.3% of reviews—
Number of ratings215 — better—
Update frequencyEvery 5 weeksFortnightly — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.0 — better15.5
Further details — not scored
Size113 MB34 MB
Age rating4+12+
DeveloperAlejandroMTR BILISIM EGITIM VE DANISMANLIK ANONIM SIRKETI

Bugs and requests

Marinus

Reported bugs

4 issues
  • App not working, ads won't clear
  • App crashes frequently
  • Mistake with sounds
  • App crashes after 10-15 seconds

Requested features

7 requests
  • Settings for Buoyage A & B & combined
  • Search feature
  • Combine sounds and lights
  • Add tides information
  • More free version functionality
Show 2 more
  • More detail in maneuvers section
  • Lights with silhouette and head-on/stern-on views

Maritime Trainer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Marinus

Subscriptions1
  • Marinus PRO3 Days trial$8.991 Year
None

Maritime Trainer

No in-app purchases

Questions

Is Marinus free?
Marinus is free to download, with in-app purchases available.
Is Maritime Trainer free?
Maritime Trainer is free to download, with no in-app purchases.
Do Marinus or Maritime Trainer have ads?
Marinus shows ads; Maritime Trainer does not.
Which is updated more often, Marinus or Maritime Trainer?
Marinus ships an update every 5 weeks, and Maritime Trainer fortnightly. Most recently, Marinus was updated on November 1, 2026 and Maritime Trainer on October 27, 2026.

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