Comparison

Marinus vs Marine Radar Simulator

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

Marine Radar Simulator

Practice using marine radar systems in a simulated offline environment. Learn to interpret radar echoes and adjust settings before navigating with real equipment. This tool is designed for educational purposes to familiarize users with radar operations.

Highlights
  • Offline radar simulation
  • Learn radar echo interpretation
  • Adjustable menu settings
  • Practice before onboard navigation
  • Simulated DRS4W functionality
Features
Read full description

Descriptions: This Marine Radar SIMULATOR app will help you learn how to use Marine Radar DRS4W in an off-line environment before you navigate with the DRS4W onboard. How to use: Launch the app and press [STBY] to show Radar simulation echoes. You can also access menu settings and adjustments. Note: This app is for use in off-line environment only. For use with the DRS4W, connect your iOS device to the DRS4W and launch the Marine Radar app.

Screenshots

Marinus4 screens
Marine Radar Simulator3 screens

Verdict

The call

The clearest difference is rating: Marine Radar Simulator at 5.0 against Marinus's 4.4. Marine Radar Simulator also leads on in-app purchases (none vs 1) and ads (none vs shown). Marinus's advantage is ratings volume (215 vs 1). 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. Marine Radar Simulator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Marine Radar Simulator holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Marinus has 215 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 65% of Marinus's written reviews are positive against 100% of Marine Radar Simulator's.

UpkeepUpdate frequency

Marinus ships an update every 5 weeks, Marine Radar Simulator every 2 weeks. Both last shipped on November 1, 2026.

Scorecard8 real differences · 2 level
Marinus versus Marine Radar Simulator: the parameters behind the verdict, then further details
ParameterMarinusMarine Radar Simulator
PriceFreeFree
Rating4.4 (215 ratings)5.0 (1 ratings) — better
Positive reviews65.3% of reviews100.0% of reviews — better
Number of ratings215 — better1
Update frequencyEvery 5 weeksEvery 2 weeks — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.06.1 — better
Further details — not scored
Size113 MB11 MB
Age rating4+4+
DeveloperAlejandro株式会社フルノソフテック

Customer experience

Marinus

All ratings215 ratings
Positive87.0%
Neutral7.4%
Negative5.6%
Written reviews95 reviews
Positive65.3%
Neutral10.5%
Negative24.2%

Marine Radar Simulator

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

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

Marine Radar Simulator

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Marinus

Subscriptions1
  • Marinus PRO3 Days trial$8.991 Year
None

Marine Radar Simulator

No in-app purchases

Questions

Is Marinus free?
Marinus is free to download, with in-app purchases available.
Is Marine Radar Simulator free?
Marine Radar Simulator is free to download, with no in-app purchases.
Which has better reviews, Marinus or Marine Radar Simulator?
Marine Radar Simulator is rated higher. Marinus averages 4.4 out of 5 from 215 ratings, while Marine Radar Simulator averages 5.0 from 1 ratings.
Do Marinus or Marine Radar Simulator have ads?
Marinus shows ads; Marine Radar Simulator does not.
Which is updated more often, Marinus or Marine Radar Simulator?
Marinus ships an update every 5 weeks, and Marine Radar Simulator every 2 weeks. Most recently, Marinus was updated on November 1, 2026 and Marine Radar Simulator on November 1, 2026.

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