Comparison

OpenSnow vs Marla Blue

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

OpenSnow

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
Read full description

OpenSnow is your trusted source for the most accurate snow forecast, snow report, and severe weather maps. "Weather forecasting for the mountains takes extra focus, analysis, and precision, which is exactly what OpenSnow provides. The app is incredible, even for super weather nerds like myself." – Cody Townsend, Pro Skier 15-Day Snow Forecasts Finding the location that has the best conditions can feel overwhelming. With OpenSnow, deciding where to go is easy. View the latest 15-day snow forecast, snow report, conditions history, and mountain webcams for your favorite locations in just a few seconds. Local Daily Snow Experts Instead of spending hours sifting through weather data, get the inside scoop in just a few minutes. Our local experts write a new Daily Snow forecast each day in the winter for regions around the US, Canada, Europe, Japan, Australia, and New Zealand. Have one of our expert local forecasters guide you to the best conditions. 3D Weather + Snow Maps We make it easy to track incoming storms with super-res radar and global precipitation, radar, and snow forecast maps. You can also view 3D maps for snow depth, avalanche risk, slope angle, active fires, air quality, wildfire smoke, public and private land ownership, and more. Download high-resolution satellite maps to view offline. PEAKS + StormNet PEAKS is our mountain weather forecast model that is up to 50% more accurate in complex terrain. StormNet is our severe weather forecast model that produces real-time, high-resolution forecasts for lightning, hail, damaging winds, and tornadoes. Combined, PEAKS + StormNet provide a first-of-its-kind, fully operational multi-component weather forecast system. Daily Features • 15-Day Hourly Forecasts • Current + Forecast Radar • Precipitation Forecast Maps • Air Quality Forecasts • Wildfire Smoke Forecast Maps • 50,000+ Weather Stations • 3D + Offline Maps • Land Boundary + Private Ownership Maps • Recent Satellite Maps Snow + Ski Features • 15-Day Snow Forecast • Powder Quality Forecast • Snow Depth Map • Season Snowfall Map • Snow Forecast Alerts • Snow Forecast Maps • Offline Ski Resort Trail Maps • Snow Forecast + Report Widgets • Historical Snow Reports Severe Weather Features (US only) • Super-Res Radar • Lightning Risk • Tornado Risk • Hail Risk • Damaging Winds Risk • Severe Weather Alerts Free Features • My Location 15-Day Forecast • Snow Forecast 15-Day Summary • Historical Weather + Snow Reports • Snow Report Alerts • Avalanche Forecasts • Mountain Webcams • Active Fires Map • Air Quality Map • Slope Angle + Slope Aspect — Free Trial — New accounts automatically receive the full OpenSnow Premium experience, with no credit card or payment information required. If you choose not to purchase OpenSnow after the free trial is over, you will be automatically downgraded to a free account and not charged. — In-App Purchase — OpenSnow Base is an auto-renewable subscription, which will renew yearly at $49.99 USD. Payment will be charged to the user's Apple account at confirmation of purchase. The subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. The account will be charged for renewal within 24 hours prior to the end of the current period and identify the cost of the renewal. If the auto-renewal fails due to a payment issue, you will still be able to access the paid content for 16 days while Apple attempts to collect payment. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. Full terms and conditions can be found here: https://support.opensnow.com/legal/terms | https://support.opensnow.com/legal/privacy Sales through Apple will be governed by Apple’s refund policy. We value all of our customers and encourage you to provide feedback on your experience. Please get in touch with us by sending an email to hello@opensnow.com

About

Marla Blue

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
Read full description

Dive smarter with Marla, the ultimate marine weather app for divers! Whether you’re a scuba diver, freediver, spearo or snorkeler, Marla gives you everything you need to plan your next underwater adventure. Check among 800+ dive spots across the UK, Ireland, Australia & California or tap anywhere on the map to get: - Underwater visibility forecasts powered by AI and satellite data - Swell, wind, tides, water temperature & wave conditions - Algae bloom alerts - Real-time viz reports from the growing community of local divers Stop guessing. Download Marla and dive with clarity. Learn more: https://www.marla.blue/how-marla-works Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://marla.blue/privacy

Screenshots

OpenSnow4 screens
Marla Blue4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 6 level
OpenSnow versus Marla Blue: the parameters behind the verdict, then further details
ParameterOpenSnowMarla Blue
PriceFreeFree
Rating4.7 (9.1K ratings)4.8 (4 ratings) — better
Positive reviews80.3% of reviews100.0% of reviews — better
Number of ratings9.1K — better4
Update frequencyEvery 11 daysEvery 4 days — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank#21 — better—
DevicesiPhone, iPad — betteriPhone
Requires iOS17.016.4 — better
Further details — not scored
Size125 MB93 MB
Age rating4+4+
DeveloperCloudnine Weather, Inc.Ocean AI

Customer experience

OpenSnow

All ratings9,057 ratings
Positive92.1%
Neutral1.2%
Negative6.7%
Written reviews849 reviews
Positive80.3%
Neutral3.7%
Negative16.0%

Marla Blue

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

OpenSnow

Reported bugs

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

Requested features

5 requests
  • 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

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

OpenSnow

Subscriptions3
  • OpenSnow Legacy$49.991 Year
  • OpenSnow Base$49.991 Year
  • OpenSnow Base Legacy$49.991 Year
3 purchases

Marla Blue

Subscriptions3
  • Marla Blue Monthly3 Days trial$9.991 Month
  • Dive Season Pass (6 months)3 Days trial$34.996 Months
  • Marla Annual Subscription7 Days trial$59.991 Year

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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