# OpenSnow vs Marla Blue

The clearest difference is ads: OpenSnow at none against Marla Blue's shown. OpenSnow also leads on ratings volume (9.1K vs 4) and chart position (#21 vs unranked). Marla Blue's advantage is review sentiment (100% vs 80%) and update cadence (every 4 days vs every 11 days). On price, rating, in-app purchases and monetization model there is nothing between them.

Both are free to download. OpenSnow sells 3 in-app purchases, starting at $49.99 per year 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 — 4.7 for OpenSnow against 4.8 for Marla Blue. That said, the two scores are not equally well evidenced: OpenSnow has 9.1K ratings behind it against 4, so its average is the more settled of the two. Written reviews are what separate them: 80% of OpenSnow's written reviews are positive against 100% of Marla Blue's.

OpenSnow ships an update every 11 days, Marla Blue every 4 days. The most recent releases landed on October 21, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | OpenSnow | Marla Blue |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (9.1K ratings)](https://appshunter.io/ios/app/opensnow/id780890907/reviews) | **[4.8 (4 ratings)](https://appshunter.io/ios/app/marla-blue-diving-forecasts/id6673897108/reviews)** |
| Number of ratings | **9.1K** | 4 |
| Positive reviews | 80.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 11 days | **Every 4 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#21** | — |
| Size | 125 MB | 93 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Cloudnine Weather, Inc.](https://appshunter.io/developer/487445927) | [Ocean AI](https://appshunter.io/developer/1767770858) |

## What reviewers say

### OpenSnow

[App page](https://appshunter.io/ios/app/opensnow/id780890907)

**Currently charting:** #21 Top Grossing · Weather, #45 Top Free · Weather (US App Store)

Get the most accurate snow forecasts, detailed snow reports, and severe weather maps. Access 15-day forecasts, local expert insights, and offline 3D maps for snow depth, avalanche risk, and more. Track storms with advanced radar and AI-powered weather systems.

**Highlights:** 15-Day Snow Forecast, Local Expert Snow Reports, 3D & Offline Weather Maps, AI-Powered Weather System, Severe Weather Tracking, Mountain Webcams, Snow Depth & Avalanche Risk Maps

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OpenSnow Legacy | $49.99 | per year |
| OpenSnow Base | $49.99 | per year |
| OpenSnow Base Legacy | $49.99 | per year |

**What reviewers like**

- 🚀 Accurate snow forecasts
- 📊 Detailed weather data and maps
- 🗺️ Comprehensive coverage of ski resorts
- 💻 Intuitive and user-friendly interface
- 🤖 Reliable and consistent forecasts

**What reviewers complain about**

- 💰 Subscription model can be expensive
- 🌐 Limited coverage outside of North America
- 🕰️ Occasional delays in updating snow conditions
- 🤖 Inconsistent accuracy in long-term forecasts
- 🔒 Paywall restricts access to some features

**Reported bugs**

- Occasional crashes or freezes on certain devices
- Inconsistencies in the display of weather data and forecasts

**Requested features**

- Expand coverage to more international ski resorts
- Improve offline functionality and data availability
- Introduce more customization options for user preferences
- Enhance integration with other outdoor activity planning apps
- Provide more detailed snow and weather data for backcountry use


### 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 OpenSnow free?

OpenSnow 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, OpenSnow or Marla Blue?

Marla Blue is rated higher. OpenSnow averages 4.7 out of 5 from 9.1K ratings, while Marla Blue averages 4.8 from 4 ratings.

### Do OpenSnow or Marla Blue have ads?

Marla Blue shows ads; OpenSnow does not.

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

OpenSnow ships an update every 11 days, and Marla Blue every 4 days. Most recently, OpenSnow was updated on October 21, 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.*