# Mareas vs My Tides

The clearest difference is in-app purchases: Mareas at none against My Tides's 2. Mareas also leads on iOS requirement (15.0 vs 18.0). My Tides's advantage is update cadence (every 3 days vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. My Tides sells 2 in-app purchases, starting at $8.99 per year. Mareas asks for nothing beyond the download.

Mareas ships an update every 3 months, My Tides every 3 days. The most recent releases landed on September 21, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Mareas | My Tides |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 23.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 days** |
| Monetization | — | Free with in-app purchases |
| Size | 56 MB | 122 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | iPhone, iPad, iPod, Apple Watch | iPhone, iPad, Mac, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Ruben Fernandez](https://appshunter.io/developer/1013021034) | [Agustin Prats](https://appshunter.io/developer/1191486614) |

## What reviewers say

### Mareas

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

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

**In-app purchases:** none


### My Tides

[App page](https://appshunter.io/ios/app/my-tides/id1545819956)

Get precise tidal predictions for over 6,000 stations worldwide, entirely offline. Access live tide charts, detailed tables, moon phases, and sun events. Plan your outdoor activities with home screen widgets and Apple Watch support.

**Highlights:** Offline tide predictions, Live tide charts, Detailed tide tables, Moon phases and sun events, Home screen widgets, Apple Watch app, Siri and Shortcuts support

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yearly Subscription | $8.99 | per year |
| Lifetime Access | $24.99 | one-time |


## Frequently asked questions

### Is Mareas free?

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

### Is My Tides free?

My Tides is free to download, with in-app purchases available.

### Do Mareas or My Tides have ads?

Neither Mareas nor My Tides shows ads.

### Which is updated more often, Mareas or My Tides?

Mareas ships an update every 3 months, and My Tides every 3 days. Most recently, Mareas was updated on September 21, 2026 and My Tides on September 11, 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.*