Comparison

PredictWind vs UV Index

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

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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

About

UV Index

Features
Read full description

UV Index shows you the current UV level for your location and helps you stay protected from the sun. Features: - Real-time UV index based on your location, powered by Apple Weather - Hourly UV forecast and 7-day forecast with UV peak, peak time, temperature and weather - Live data that refreshes automatically through the day, plus pull-to-refresh - Smart Insights: best sun time, vitamin D estimate, clothing tips, shadow rule, and snow UV warning — all based on the day's peak UV, not just the current reading - Sunscreen timer that calculates how long your SPF protection lasts, with a Smart mode that adjusts for changing UV - Tan Timer for even tanning across body sides with UV-aware timing - Notifications when UV reaches your chosen level, plus a morning forecast with today's peak UV and optional hydration reminders - Color-coded UV levels from Low to Extreme, or shaded accent colours that scale with UV intensity - 15 shareable photo overlay themes with your UV reading - 6 colour themes and adjustable text sizes for easy outdoor readability Stay sun-safe whether you're at the beach, working outdoors, or just going for a walk.

Screenshots

PredictWind4 screens
UV Index4 screens

Verdict

The call

The clearest difference is price: PredictWind at Free against UV Index's $0.99. PredictWind also leads on chart position (#25 vs unranked) and device support (3 vs 1). UV Index's advantage is in-app purchases (none vs 16). On update cadence, ads and iOS requirement 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

PredictWind is free to download; UV Index costs $0.99 up front. PredictWind sells 16 in-app purchases, starting at $6.99 per month. UV Index asks for nothing beyond the download.

UpkeepUpdate frequency

PredictWind ships an update every 11 days, UV Index every 9 days. The most recent releases landed on October 15, 2026 and October 8, 2026 respectively.

Scorecard4 real differences · 7 level
PredictWind versus UV Index: the parameters behind the verdict, then further details
ParameterPredictWindUV Index
PriceFree — better$0.99
Rating4.8 (33K ratings) — better—
Positive reviews84.2% of reviews—
Number of ratings33K — better—
Update frequencyEvery 11 daysEvery 9 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
Best chart rank#25 — better—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.5 — better16.4
Further details — not scored
Size40 MB40 MB
Age rating4+4+
DeveloperPredictWind LimitedNiklas Almstedt

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

UV Index

Not enough reviews yet to summarise bugs or requests.

In-app purchases

16 purchases

PredictWind

Subscriptions11
  • Basic - Monthly7 Days trial$6.991 Month
  • Basic - 3 Monthly$12.003 Months
  • Basic - 3 Monthly7 Days trial$12.003 Months
Show 8 more
  • 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
One-time5
  • Basic Subscription, 1 Month$3.99
  • Basic Subscription, 3 Months$11.99
  • Basic Subscription, 12 Months$28.99
Show 2 more
  • Standard Subscription, 1 Month$48.99
  • Professional Subscription, 1 Month$99.99
None

UV Index

No in-app purchases

Questions

Is PredictWind free?
PredictWind is free to download, with in-app purchases available.
Is UV Index free?
UV Index costs $0.99, with no in-app purchases.
Do PredictWind or UV Index have ads?
Neither PredictWind nor UV Index shows ads.
Which is updated more often, PredictWind or UV Index?
PredictWind ships an update every 11 days, and UV Index every 9 days. Most recently, PredictWind was updated on October 15, 2026 and UV Index on October 8, 2026.

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