# Surf vs Marla Blue

The clearest difference is update cadence: Marla Blue at every 4 days against Surf's every 6 weeks. Marla Blue also leads on review sentiment (100% vs 87%). Surf's advantage is ratings volume (940 vs 4) and chart position (#111 vs unranked). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Surf sells 2 in-app purchases, starting at $4.99 per month and Marla Blue sells 3 in-app purchases, starting at $9.99 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 — 4.9 for Surf against 4.8 for Marla Blue. That said, the two scores are not equally well evidenced: Surf has 940 ratings behind it against 4, so its average is the more settled of the two. Written reviews are what separate them: 87% of Surf's written reviews are positive against 100% of Marla Blue's.

Surf ships an update every 6 weeks, Marla Blue every 4 days. Both last shipped on October 18, 2026.

## The numbers

| Metric | Surf | Marla Blue |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (940 ratings)](https://appshunter.io/ios/app/surf-forecastcom/id6450721636/reviews)** | [4.8 (4 ratings)](https://appshunter.io/ios/app/marla-blue-diving-forecasts/id6673897108/reviews) |
| Number of ratings | **940** | 4 |
| Positive reviews | 87.1% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 6 weeks | **Every 4 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#111** | — |
| Size | 138 MB | 93 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Meteo365 Ltd.](https://appshunter.io/developer/661723505) | [Ocean AI](https://appshunter.io/developer/1767770858) |

## What reviewers say

### Surf

[App page](https://appshunter.io/ios/app/surf-forecastcom/id6450721636)

**Currently charting:** #111 Top Grossing · Weather, #131 Top Free · Weather (US App Store)

Get simple, accurate surf forecasts for over 7,000 breaks worldwide. Plan your sessions with detailed wave information, tide times, and mapping to find the best conditions and nearby spots. Access extended forecasts and custom alerts with premium features.

**Highlights:** Detailed surf forecasts, Wavefinder map, Live webcam links, Tide times, 12-day forecasts, Custom surf alerts

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Service: Monthly | $4.99 | per month |
| Premium Service (Yearly) | $34.99 | per year |

**What reviewers like**

- 🌊 Accurate surf forecasts
- 👍 Easy to use and navigate
- 🗺️ Comprehensive coverage of locations
- 🔍 Detailed information (swell, wind, tides, etc.)
- 💰 Good value for subscription

**What reviewers complain about**

- 🔄 Inconsistent data updates
- 🌊 Wave height/conditions not always accurate
- 🏞️ Missing data for some locations (e.g. Great Lakes)
- 🤔 Confusing or misleading surf ratings/forecasts

**Reported bugs**

- Crashes or freezes on some devices
- Geolocation issues with break markers

**Requested features**

- Ability to manually refresh data
- More detailed tidal/current information
- Expanded location coverage
- Improved accuracy for wave height/conditions


### Marla Blue

[App page](https://appshunter.io/ios/app/marla-blue-diving-forecasts/id6673897108)

Plan your next underwater adventure with detailed marine weather forecasts. Get AI-powered visibility predictions, swell, wind, tide, and temperature data for over 800 dive spots. Receive algae bloom alerts and real-time viz reports from a community of divers.

**Highlights:** Underwater visibility forecasts (AI & satellite), Swell, wind, tides, water temperature, Algae bloom alerts, Real-time viz reports from divers, 800+ dive spots (UK, Ireland, Australia, California), Map-based spot selection

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Marla Blue Monthly | $9.99 | per month |
| Dive Season Pass (6 months) | $34.99 | per 6 months |
| Marla Annual Subscription | $59.99 | per year |


## Frequently asked questions

### Is Surf free?

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

### Is Marla Blue free?

Marla Blue is free to download, with in-app purchases available.

### Which has better reviews, Surf or Marla Blue?

Surf is rated higher. Surf averages 4.9 out of 5 from 940 ratings, while Marla Blue averages 4.8 from 4 ratings.

### Do Surf or Marla Blue have ads?

Both Surf and Marla Blue show ads.

### Which is updated more often, Surf or Marla Blue?

Surf ships an update every 6 weeks, and Marla Blue every 4 days. Most recently, Surf was updated on October 18, 2026 and Marla Blue on October 18, 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.*