Comparison

Marinus vs Unimiami

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

Unimiami

This digital university offers flexible, innovative bilingual educational programs designed to enhance job skills and professional growth. It focuses on diversity, inclusion, and advanced technologies to provide accessible, quality education for a changing professional world.

Highlights
  • Flexible digital learning
  • Innovative educational programs
  • Bilingual courses
  • Market-demand driven curriculum
  • Enhanced employability
  • Advanced technology integration
Features
Read full description

UNIMIAMI es una universidad digital que combina flexibilidad, innovación y empleabilidad. Invitamos a la transformación personal y profesional de una generación global y digital. Nuestra App de UniMiami te ofrece el acceso a los mejores programas educativos bilingües, adaptados a las demandas del mercado y diseñados para mejorar habilidades laborales. A través de alianzas estratégicas con empresas punteras del mercado, fortalecemos la empleabilidad de nuestros estudiantes. Con un enfoque en la diversidad, la inclusión y el uso de tecnologías avanzadas, buscamos ofrecer una educación de calidad accesible, que prepara a los estudiantes para un mundo profesional en constante cambio. Términos de uso: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Marinus4 screens
Unimiami4 screens

Verdict

The call

The clearest difference is ads: Unimiami at none against Marinus's shown. Marinus's advantage is ratings volume (215 vs 2). On price, rating, update cadence and in-app purchases 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 and Unimiami sells 2 in-app purchases, starting at $17.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.4 for Marinus against 4.5 for Unimiami. That said, the two scores are not equally well evidenced: Marinus has 215 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Marinus ships an update every 5 weeks, Unimiami every 3 weeks. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.

Scorecard2 real differences · 8 level
Marinus versus Unimiami: the parameters behind the verdict, then further details
ParameterMarinusUnimiami
PriceFreeFree
Rating4.4 (215 ratings)4.5 (2 ratings) — better
Positive reviews65.3% of reviews—
Number of ratings215 — better2
Update frequencyEvery 5 weeksEvery 3 weeks — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.0 — better14.0
Further details — not scored
Size113 MB67 MB
Age rating4+17+
DeveloperAlejandroEduca EdTech

Customer experience

Marinus

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

Unimiami

All ratings2 ratings
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

Unimiami

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Marinus

Subscriptions1
  • Marinus PRO3 Days trial$8.991 Year
2 purchases

Unimiami

Subscriptions2
  • Unimiami - Cursos Online$17.991 Month
  • Unimiami - Cursos Online$229.991 Year

Questions

Is Marinus free?
Marinus is free to download, with in-app purchases available.
Is Unimiami free?
Unimiami is free to download, with in-app purchases available.
Which has better reviews, Marinus or Unimiami?
Unimiami is rated higher. Marinus averages 4.4 out of 5 from 215 ratings, while Unimiami averages 4.5 from 2 ratings.
Do Marinus or Unimiami have ads?
Marinus shows ads; Unimiami does not.
Which is updated more often, Marinus or Unimiami?
Marinus ships an update every 5 weeks, and Unimiami every 3 weeks. Most recently, Marinus was updated on November 6, 2026 and Unimiami on October 30, 2026.

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