# iMar vs Mareas

The clearest difference is update cadence: Mareas at every 3 months against iMar's every 10 months. Mareas also leads on device support (4 vs 2). iMar's advantage is iOS requirement (10.0 vs 15.0). On price, ads and in-app purchases there is nothing between them.

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

iMar ships an update every 10 months, Mareas every 3 months. The most recent releases landed on September 15, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | iMar | Mareas |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 29.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 151 MB | 56 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Puertos del Estado](https://appshunter.io/developer/1077674067) | [Ruben Fernandez](https://appshunter.io/developer/1013021034) |

## What reviewers say

### iMar

[App page](https://appshunter.io/ios/app/imar/id545093470)

Access real-time and forecasted sea conditions across Spain. View detailed data on waves, sea level, wind, and temperature for various locations. Includes animated forecasts and an alert system for coastal conditions.

**Highlights:** Real-time sea state data, Multi-day sea condition forecasts, Detailed oleaje, level, wind, and temperature data, Favorite location management, Animated wind and wave forecasts, Coastal alert system

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

**In-app purchases:** none


### Mareas

[App page](https://appshunter.io/ios/app/mareas/id1522201767)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is iMar free?

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

### Is Mareas free?

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

### Do iMar or Mareas have ads?

Neither iMar nor Mareas shows ads.

### Which is updated more often, iMar or Mareas?

iMar ships an update every 10 months, and Mareas every 3 months. Most recently, iMar was updated on September 15, 2026 and Mareas on September 21, 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.*