# Marla Blue vs Wavey Surf

The clearest difference is ads: Wavey Surf at none against Marla Blue's shown. Wavey Surf also leads on device support (3 vs 1). Marla Blue's advantage is update cadence (every 4 days vs every 10 days). On price, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Marla Blue sells 3 in-app purchases, starting at $9.99 per month and Wavey Surf sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

Marla Blue ships an update every 4 days, Wavey Surf every 10 days. The most recent releases landed on October 18, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Marla Blue | Wavey Surf |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (4 ratings)](https://appshunter.io/ios/app/marla-blue-diving-forecasts/id6673897108/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 4 days** | Every 10 days |
| Monetization | Free with in-app purchases | — |
| Size | 93 MB | 36 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ocean AI](https://appshunter.io/developer/1767770858) | [Synapse Ventures Limited](https://appshunter.io/developer/1875706371) |

## What reviewers say

### 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 |


### Wavey Surf

[App page](https://appshunter.io/ios/app/wavey-surf/id6758912087)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $5.99 | per month |
| Annual | $44.99 | per year |


## Frequently asked questions

### Is Marla Blue free?

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

### Is Wavey Surf free?

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

### Do Marla Blue or Wavey Surf have ads?

Marla Blue shows ads; Wavey Surf does not.

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

Marla Blue ships an update every 4 days, and Wavey Surf every 10 days. Most recently, Marla Blue was updated on October 18, 2026 and Wavey Surf on October 8, 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.*