PredictWind vs Mountain
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PredictWind
Get detailed marine weather forecasts, including wind, wave, tide, and current predictions. Compare multiple global weather models and access high-resolution maps. Optimize your routes and plan departures with AI-powered insights and historical climate data.
- Multiple global weather model comparison
- High-resolution forecast maps
- AI-powered weather routing
- Departure planning tools
- Tidal and ocean current maps
- 10-day forecast and climate data
- Live wind observations and webcams
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Official weather supplier to the 37th America's Cup and The Ocean Race. Founded by Olympian and two-time America's Cup winner Jon Bilger, and used by over 2 million sailors, cruisers, fishers, boaters, paddlers, wingfoilers and kiters. Free wind, wave, tide, current and rain forecasts for anywhere on the water, from your home harbour to the middle of an ocean. FORECASTS YOU CAN CROSS-CHECK Compare the world's top-ranking models side by side: ECMWF, AIFS, ICON, UKMO and GFS, plus our own PWAi, PWG and PWE models. Add high-resolution regional models including HRRR, RRFS, AROME, ICON D2, UKMO 2K and our exclusive 1 km PWG & PWE, where available. When the models agree, go. When they don't, you know to wait. MAPS BUILT FOR THE WATER High-resolution forecast maps down to 1 km in selected areas for wind, gust, wave, rain, cloud, pressure, CAPE, air and sea temperature, ocean data and solunar, with animated streamlines, wind barbs or arrows and synoptic displays. Split-screen maps compare models or conditions, such as wind alongside currents. DASHBOARD TO SEE EVERYTHING Our new Dashboard brings together your Daily Briefing, wind, wave and tidal current maps, forecast graphs and a 10-day forecast, all in one view. WEATHER ROUTING PredictWind calculates the optimal route for comfort or speed, factoring in wind, wave, tide, ocean current, depth and your sailing yacht's or powerboat's dimensions and performance. Power Routing finds fuel-efficient routes tailored to your powerboat. Plan longer passages with ECMWF ensemble forecasts out to 30 days. DEPARTURE PLANNING See the conditions you'd meet across four departure times, then choose the departure window that suits your boat and your crew. TIDAL AND OCEAN CURRENT MAPS Tidal current maps at 100 m resolution in high-current areas, a 400 m model within 90 km of the coast and 4 km out to 600 km offshore, coupled with global ocean currents for the complete picture. AI ROUTING AND DEPARTURE SUMMARIES Trained for what matters to boaters, our AI summaries give you expert insight to help you make the right call and keep your family, friends and crew safe. PLAN AHEAD WITH CLIMATE DATA Explore 10 years of wind, wave and weather data, with monthly averages and wind and wave roses. Compare typical morning, afternoon and night conditions to choose when and where to sail, race or explore. PASSAGE GUIDE Find the best time of year for passages worldwide, with months rated Good, Marginal or Avoid, plus written summaries of historical conditions and seasonal planning advice. SEE WHAT'S HAPPENING RIGHT NOW Live wind observations, webcams and AIS coverage of more than 280,000 vessels, so you know the real conditions before you leave the dock. Hybrid satellite imagery, global rain radar and lightning overlays help you track approaching weather, rain and thunderstorms. ALSO INCLUDED • Daily Briefing: the forecast as a plain-text summary. • Tables: detailed wind, wave and rain analysis side by side. • Graphs: compare multiple forecasts at once. • Forecast Validation: see which model has been most accurate near you, checked against actual wind observations. • Weather Alerts: get told when your conditions arrive, including GMDSS extreme weather warnings. • Local Knowledge: the best spots, amenities and activities at your destination. • GPS Tracking: a free tracking page for your blog or website with wind data overlaid. • AI Polars: learn your boat's performance for more accurate routing. Requires a DataHub and Professional subscription. • Forecast Replay, Sail Crossover charts and comfort routing modes for maximum roll, vertical acceleration and slamming. Free to download, with forecasts for any location. Basic, Standard and Professional subscriptions add higher-resolution models, longer-range data and expert tools. Terms and conditions: https://www.predictwind.com/about-us/terms-and-conditions Privacy policy: https://www.predictwind.com/about-us/privacy-policy
Mountain
Provides detailed weather forecasts for over 11,000 mountain summits globally. Offers hourly and long-range predictions, multi-elevation weather data, and offline map access for planning outdoor adventures.
- Free 6-day forecasts
- Weather at multiple elevations
- Hour-by-hour weather detail
- Offline maps and forecasts
- Detailed topographic and satellite mapping
- Import GPX routes
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For over 20 years, Mountain-Forecast.com has been the go-to weather service for mountain enthusiasts, offering reliable forecasts for more than 11,000 summits worldwide. From Mount Rainier to Mount Fuji, climbers, skiers, snowboarders, mountain bikers, and hikers count on our accurate mountain forecasts to plan everything from casual day trips to major expeditions. Why choose the Mountain Forecast App? - Weather at multiple elevations - Long-range 16-day forecasts* - Hour-by-hour weather detail - Four forecast updates per day - Detailed topographic and satellite mapping - NEW: offline maps and forecasts* - Import GPX routes *MountainPro features, available to subscribers (who also offer ad-free web browsing of the mountain-forecast.com website) Offline Access: Download forecasts and topographic maps without an internet connection so you’re always prepared. “A must-have app for anyone who spends time in the mountains. The forecasts for different elevations are critical for both planning and when I’m out climbing. The best mountain weather app out there!” Leigh Strong (USA) Please remember that mountain weather is unpredictable; always combine our forecasts with your on-the-spot observations and other sources. Venture safely with Mountain-Forecast.com as your essential mountain weather guide. -- Terms of use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is ads: PredictWind at none against Mountain's shown. PredictWind also leads on update cadence (every 9 days vs every 2 months) and ratings volume (33K vs 841). 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
Both are free to download. PredictWind sells 10 in-app purchases, starting at $6.99 per month and Mountain sells 2 in-app purchases, starting at $3.99 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 — 4.8 for PredictWind against 4.9 for Mountain. That said, the two scores are not equally well evidenced: PredictWind has 33K ratings behind it against 841, so its average is the more settled of the two. Written reviews are what separate them: 84% of PredictWind's written reviews are positive against 74% of Mountain's.
PredictWind ships an update every 9 days, Mountain every 2 months. Both last shipped on November 12, 2026.
| Parameter | PredictWind | Mountain |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (33K ratings) | 4.9 (841 ratings) — better |
| Positive reviews | 84.4% of reviews — better | 73.8% of reviews |
| Number of ratings | 33K — better | 841 |
| Update frequency | Every 9 days — better | Every 2 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | #23 — better | #61 |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 111 MB | 128 MB |
| Age rating | 4+ | 4+ |
| Developer | PredictWind Limited | Meteo365 Ltd. |
Customer experience
PredictWind
Mountain
User reviews
PredictWind
From 33K App Store ratingsWhat we love
- 👍 Accurate weather forecasts
- 🚀 Comprehensive data and features
- 💡 Useful for sailing, fishing, and other outdoor activities
- 👍 Easy to use and navigate
- 🚀 Reliable and dependable
Room to improve
- 🐛 Occasional inaccuracies in weather predictions
- 💰 Expensive subscription costs
- 🔒 Difficult to cancel subscription
- 🔒 Locked into using proprietary hardware and services
- 🔒 Limited free features
Mountain
From 841 App Store ratingsWhat we love
- 🎯 Highly accurate mountain-specific forecasts
- 👍 Intuitive and easy-to-use interface
- 🗺️ Detailed multi-elevation weather data
- 💾 Offline maps and weather access
- ⭐ No distracting ads in app
Room to improve
- 💰 Subscription paywall for extended forecasts
- 🔄 Inconsistent data alignment in forecast table
- 🌍 No imperial/metric unit toggle (not intuitive)
- 📉 Free version severely limited compared to paid
- 🐛 App crashes and freezes frequently
Bugs and requests
PredictWind
Reported bugs
3 issues- App crashes or freezes on some devices
- Inconsistent performance across different locations
- Subscription issues and billing problems
Requested features
5 requests- Improved integration with other apps and charts
- More frequent weather model updates
- Earlier weather forecast updates
- Ability to customize alert settings
- Improved offline functionality
Mountain
Reported bugs
7 issues- App crashes after 4 seconds of use
- Forecast table data misalignment (temperature shows with wrong icons)
- Password reset not accepting new passwords
- Freezing level data appears in humidity column
- 12-day forecast non-functional at mid-low elevations
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- Minimum temperature missing from recent update
- Graph data not lining up with forecast information
Requested features
6 requests- Imperial and metric unit switching
- GPS track recording capability
- Past weather data/history viewing
- Better search functionality for minor peaks and ridges
- Restore minimum temperature display
Show 1 moreShow fewer
- 12-day forecast for all elevation settings
In-app purchases
PredictWind
- Basic - Monthly7 Days trial$6.991 Month
- Basic - 3 Monthly7 Days trial$12.003 Months
- Basic - Annual7 Days trial$29.001 Year
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- Standard - Monthly7 Days trial$49.001 Month
- Standard - 3 Monthly$99.003 Months
- Professional - Monthly7 Days trial$99.001 Month
- Standard - 3 Monthly7 Days trial$99.003 Months
- Standard - Annual7 Days trial$249.001 Year
- Professional - 3 Monthly7 Days trial$249.003 Months
- Professional - Annual7 Days trial$499.001 Year
Mountain
- Premium Service (Monthly)$3.991 Month
- Premium Service (Yearly)$24.991 Year









