PredictWind vs DiveSight
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PredictWind
Get accurate marine weather forecasts and powerful tools for wind, waves, and currents. Plan your trips with routing and departure planning features, and stay informed with live observations and alerts. Ideal for all marine activities.
- Accurate marine weather forecasts
- Wind, wave, and current data
- Weather routing and departure planning
- High-resolution marine weather maps
- Live wind observations and webcams
- Weather alerts
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Accurate marine weather forecasts and powerful tools utilizing wind, wave and currents, save you time, keep you safe and ensure you get the most out of every day on the water. Access the world’s top-ranking forecast models for reliable and accurate wind and weather data, including ECMWF, AIFS, ICON, UKMO, GFS, and more. Our very own PWAi, PWG & PWE models deliver unmatched accuracy in the short-to-medium range. View high resolution marine weather maps for wind, gust, CAPE, wave, rain, cloud, pressure, air temperature, sea temperature, ocean data and solunar. Suitable for sailing yacht, powerboat and any other marine weather activity. In addition to marine forecasts, PredictWind also provides a suite of powerful marine weather tools to save you time and keep you safe at sea using Wind, Wave, Tidal and Ocean currents. Weather Routing takes your start and end points then calculates your route factoring in tides, currents, wind and wave data, depth and your Sailing Yacht or Powerboats unique dimensions to give you the best route for comfort or speed. Departure Planning quickly summarizes the forecast marine weather conditions you’ll encounter along your route if leaving on day 1, 2, 3, or 4. Use this data to select the perfect departure date, every time for your Sailing Yacht or Powerboat. ADDITIONAL FEATURES - Daily Briefing: Powerful marine weather data condensed into a simple text forecast. - Maps: High resolution forecasts maps with animated streamlines, wind barbs or arrows. - Tables: The ultimate dashboard for detailed analysis of Wind, Wave, Rain and more. - Graphs: Compare multiple marine forecasts at the same time. - Live Wind Observations and Webcams: Know what’s happening with the weather right now at your local spot. - Local Knowledge: Hear about the best marine spots, amenities and activities at your destination. - Weather Alerts: Set your preferences then get alerts when conditions are just the way you like them for Wind, wave and other parameters. - Ocean Data: See what’s happening under the waves with ocean and tidal currents, and sea temperature. - GPS Tracking: Get a free customized GPS tracking page for your blog or website showing wind data overlaid. - AIS Data: View over 280,000 vessels worldwide on the AIS network to see marine traffic. Terms and conditions: https://www.predictwind.com/about-us/terms-and-conditions Privacy policy: https://www.predictwind.com/about-us/privacy-policy
DiveSight
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.
- Marine Life Abundance Index
- Underwater Visibility Forecasts
- 10-Year Monthly Climatology
- Depth-Resolved Conditions
- Dive Site & Species Search
- Seasonal Event Calendar
- Offline Access (Pro)
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Know what you'll see before you dive — the first app to forecast both marine life abundance and underwater visibility, at dive sites worldwide. Updated daily. Pick the right site, the right day, and the right season before you ever get wet. WHY DIVESIGHT Weather apps help tell you if you can dive. DiveSight also tells you how good it's likely to be — how much marine life you're likely to encounter and how far you'll see, days in advance, anywhere in the world. It's the difference between hoping and making decisions based on the best ocean intelligence available. THE FORECASTS - Marine Life Index (0–100) of abundance for every site, updated daily — see which days will be better than usual, up to a week ahead. - Underwater visibility — including the tens of thousands of sites no crowdsourced app has reports for. DiveSight predicts visibility worldwide from satellite data and fisheries oceanography. Plan your dive with confidence. – 10 years of monthly climatology per site: water temperature, visibility, currents, weather, wind, and more — so you can pick the actual best month to go, year over year. – Depth-resolved conditions: temperatures at the surface, 10m/30ft, and 30m/90ft, plus currents, waves, tides, sun, and moon. Everything you want to know about conditions. FIND YOUR NEXT DIVE – By destination — browse a heat map of 28,000+ dive sites across 1,400+ regions. Zoom into Raja Ampat, Cozumel, the Red Sea, Komodo, the Maldives, the Galápagos, or the hidden sites between them. – By creature — search 6,000+ marine species and see exactly where and when you can dive with them: hammerheads, mantas, mola mola, whale sharks, mandarinfish, thresher sharks, nudibranchs, and thousands more. Every species linked to the sites, seasons, and regions where it appears. – Around you — tap once to see every dive site within range, sorted by today's conditions, marine life, or distance. Perfect for layovers, road trips, and your local shore dive. – By season — a calendar of bucket-list events with predicted timing windows: the sardine run, manta cleaning stations, hammerhead schools, whale shark aggregations, mobula ray gatherings, and spawning events. Find what's peaking right now — and where to go for it. WHO IT'S FOR Scuba divers planning a liveaboard, a weekend boat, or a shore dive. Snorkelers and freedivers chasing clear water and big animals. Vacation divers picking the best week — and locals deciding if today is the day. FREE TO START Browse 15,000+ dive sites, 3,000+ marine species, the seasonal events calendar, today's live conditions, and unlimited dive and marine life logging — free, forever. DiveSight Pro unlocks the full 7-day forecasts for marine life, visibility, water, and weather conditions, along with 10-year monthly climatology, the complete 28,000+ site and 6,000+ species marine life-list, and offline access to dive sites, forecasts, and marine life info. Two weeks of Pro are on us: one when you create an account and another one whenever you'd like. BUILT ON REAL OCEAN SCIENCE Institutional-grade satellite and oceanographic data from NASA, NOAA, the European Space Agency, and other leading sources — refreshed daily, in the palm of your hand. Log your dives and sync sightings with iNaturalist. Designed for scuba divers, snorkelers, freedivers, and all ocean lovers. iPhone & iPad. The ocean, forecasted. Your next great dive starts with comprehensive ocean intelligence. DiveSight Pro is an auto-renewing subscription. Plans: Weekly, Monthly, and Annual. Payment is charged to your Apple ID at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period; manage or cancel anytime in Settings → Apple ID → Subscriptions. Terms of Use (EULA): https://divesight.ai/terms Privacy Policy: https://divesight.ai/privacy
Screenshots
Verdict
The clearest difference is ratings volume: PredictWind at 33K against DiveSight's 24. PredictWind also leads on chart position (#21 vs unranked) and iOS requirement (15.5 vs 26.0). DiveSight's advantage is review sentiment (100% vs 84%) and rating (5.0 vs 4.8). On price, update cadence, ads and in-app purchases 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 16 in-app purchases, starting at $6.99 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: PredictWind has 33K ratings behind it against 24, so its average is the more settled of the two. Written reviews point the same way: 84% of PredictWind's written reviews are positive against 100% of DiveSight's.
PredictWind ships an update every 9 days, DiveSight weekly. The most recent releases landed on October 4, 2026 and September 26, 2026 respectively.
| Parameter | PredictWind | DiveSight |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (33K ratings) | 5.0 (24 ratings) — better |
| Positive reviews | 84.2% of reviews | 100.0% of reviews — better |
| Number of ratings | 33K — better | 24 |
| Update frequency | Every 9 days | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Best chart rank | #21 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 15.5 — better | 26.0 |
| Further details — not scored | ||
| Size | 40 MB | 112 MB |
| Age rating | 4+ | 4+ |
| Developer | PredictWind Limited | DiveSight LLC |
Customer experience
PredictWind
DiveSight
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
DiveSight
Not enough reviews yet to summarise bugs or requests.
In-app purchases
PredictWind
- Basic - Monthly7 Days trial$6.991 Month
- Basic - 3 Monthly$12.003 Months
- Basic - 3 Monthly7 Days trial$12.003 Months
Show 8 moreShow fewer
- Basic - Annual7 Days trial$29.001 Year
- 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
- Basic Subscription, 1 Month$3.99
- Basic Subscription, 3 Months$11.99
- Basic Subscription, 12 Months$28.99
Show 2 moreShow fewer
- Standard Subscription, 1 Month$48.99
- Professional Subscription, 1 Month$99.99
DiveSight
- DiveSight Pro - Weekly$4.997 Days
- DiveSight Pro - Monthly$9.991 Month
- DiveSight Pro - Annual$99.991 Year







