# Marinus vs Unimiami

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.

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.

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.

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.

## The numbers

| Metric | Marinus | Unimiami |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (215 ratings)](https://appshunter.io/ios/app/marinus-maritime-rules/id536108872/reviews) | **[4.5 (2 ratings)](https://appshunter.io/ios/app/unimiami/id6749622098/reviews)** |
| Number of ratings | **215** | 2 |
| Positive reviews | 65.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 113 MB | 67 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Alejandro](https://appshunter.io/developer/476976572) | [Educa EdTech](https://appshunter.io/developer/1682926385) |

## What reviewers say

### Marinus

[App page](https://appshunter.io/ios/app/marinus-maritime-rules/id536108872)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Marinus PRO | $8.99 | per year |

**What reviewers like**

- 👍 Great app for learning
- 👍 Useful study aid
- 👍 Very helpful for mariners
- 👍 Good information provided
- 👍 Easy to use

**What reviewers complain about**

- 👎 Swamped with ads
- 👎 Broken app functionality
- 👎 Subscription model is a money grab
- 👎 Lifetime pro withdrawn
- 👎 Scam for changing to subscription

**Reported bugs**

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

**Requested features**

- Settings for Buoyage A & B & combined
- Search feature
- Combine sounds and lights
- Add tides information
- More free version functionality


### Unimiami

[App page](https://appshunter.io/ios/app/unimiami/id6749622098)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unimiami - Cursos Online | $17.99 | per month |
| Unimiami - Cursos Online | $229.99 | per year |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*