# Mar Azul vs earthquakeX App

The clearest difference is update cadence: Mar Azul at every 3 months against earthquakeX App's every 9 months. Mar Azul also leads on ratings volume (33 vs 7) and iOS requirement (15.1 vs 26.0). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Mar Azul against 5.0 for earthquakeX App. Both are backed by a comparable volume of ratings — 33 and 7 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Mar Azul ships an update every 3 months, earthquakeX App every 9 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | Mar Azul | earthquakeX App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (33 ratings)](https://appshunter.io/ios/app/mar-azul/id1510629798/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/earthquakex-app/id1619636637/reviews)** |
| Number of ratings | **33** | 7 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 9 months |
| Monetization | Free | Free |
| Size | 54 MB | 25 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Comunidad Mar Azul Inc.](https://appshunter.io/developer/1510629797) | [James Gaudino Sanchez](https://appshunter.io/developer/1619636639) |

## What reviewers say

### Mar Azul

[App page](https://appshunter.io/ios/app/mar-azul/id1510629798)

Access the latest content, connect with an online community, and receive inspiration. Watch or listen to messages, stay updated on news and events, and share content with friends. Participate in the 5K Mar Azul movement by discovering its purpose, registering, and accessing preparation resources.

**Highlights:** Watch or listen to messages, Stay updated on news and events, Share content with friends, Join the 5K Mar Azul movement, Register for the race, Access exclusive preparation resources

**Features:** Vision Pro support

**In-app purchases:** none


### earthquakeX App

[App page](https://appshunter.io/ios/app/earthquakex-app/id1619636637)

This app provides real-time seismic activity information for Puerto Rico and globally. It includes an interactive map with layers for earthquakes, tsunami zones, and assembly points, along with educational content and news updates.

**Highlights:** Real-time earthquake monitoring, Interactive map with multiple layers, Earthquake Finder with search options, Routes to evacuation assembly places, Educational library on earthquakes and tsunamis, Earthquake news and updates bulletin

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Mar Azul free?

Mar Azul is free to download, with no in-app purchases.

### Is earthquakeX App free?

earthquakeX App is free to download, with no in-app purchases.

### Which has better reviews, Mar Azul or earthquakeX App?

earthquakeX App is rated higher. Mar Azul averages 5.0 out of 5 from 33 ratings, while earthquakeX App averages 5.0 from 7 ratings.

### Do Mar Azul or earthquakeX App have ads?

Neither Mar Azul nor earthquakeX App shows ads.

### Which is updated more often, Mar Azul or earthquakeX App?

Mar Azul ships an update every 3 months, and earthquakeX App every 9 months. Most recently, Mar Azul was updated on November 3, 2026 and earthquakeX App on November 3, 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.*