# Marla Blue vs DiveSight

The clearest difference is ads: DiveSight at none against Marla Blue's shown. DiveSight also leads on rating (5.0 vs 4.8) and ratings volume (31 vs 4). Marla Blue's advantage is iOS requirement (16.4 vs 26.0). On price, review sentiment, update cadence and in-app purchases there is nothing between them.

Both are free to download. Marla Blue sells 3 in-app purchases, starting at $9.99 per month and DiveSight sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

DiveSight holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: DiveSight has 31 ratings behind it against 4, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Marla Blue ships an update every 3 days, DiveSight weekly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Marla Blue | DiveSight |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (4 ratings)](https://appshunter.io/ios/app/marla-blue-diving-forecasts/id6673897108/reviews) | **[5.0 (31 ratings)](https://appshunter.io/ios/app/divesight-scuba-forecasts/id6763649888/reviews)** |
| Number of ratings | 4 | **31** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Weekly |
| Monetization | Free with in-app purchases | Freemium |
| Size | 94 MB | 113 MB |
| Requires iOS | **16.4** | 26.0 |
| Devices | iPhone | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Ocean AI](https://appshunter.io/developer/1767770858) | [DiveSight LLC](https://appshunter.io/developer/1890619290) |

## What reviewers say

### Marla Blue

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

This marine weather app provides detailed forecasts for divers, including underwater visibility, swell, wind, tides, and water temperature. It covers over 1500 dive spots and offers real-time reports and photos from a community of local divers.

**Highlights:** Underwater visibility forecasts (AI & satellite), Swell, wind, tides, water temp, wave conditions, Algae bloom alerts, 1500+ UK, AU, NZ, SA, CA dive spots, Real-time viz reports & photos, Community-driven insights

**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 |


### DiveSight

[App page](https://appshunter.io/ios/app/divesight-scuba-forecasts/id6763649888)

This app forecasts marine life abundance and underwater visibility at dive sites globally. Plan your dives with detailed daily updates, long-term climatology, and site-specific conditions to maximize your underwater experience.

**Highlights:** Marine Life Abundance Index, Underwater Visibility Forecasts, 10-Year Monthly Climatology, Depth-Resolved Conditions, Dive Site & Species Search, Seasonal Event Calendar, Offline Access (Pro)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DiveSight Pro - Weekly | $4.99 | per 7 days |
| DiveSight Pro - Monthly | $9.99 | per month |
| DiveSight Pro - Annual | $79.99 | per year |


## Frequently asked questions

### Is Marla Blue free?

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

### Is DiveSight free?

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

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

DiveSight is rated higher. Marla Blue averages 4.8 out of 5 from 4 ratings, while DiveSight averages 5.0 from 31 ratings.

### Do Marla Blue or DiveSight have ads?

Marla Blue shows ads; DiveSight does not.

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

Marla Blue ships an update every 3 days, and DiveSight weekly. Most recently, Marla Blue was updated on October 30, 2026 and DiveSight on October 31, 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.*