# PredictWind vs UV Index

The clearest difference is price: PredictWind at Free against UV Index's $0.99. PredictWind also leads on chart position (#23 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.

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.

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.

## The numbers

| Metric | PredictWind | UV Index |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.8 (33K ratings)](https://appshunter.io/ios/app/predictwind-marine-forecasts/id477048487/reviews)** | — |
| Number of ratings | **33K** | — |
| Positive reviews | 84.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 11 days | **Every 9 days** |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#23** | — |
| Size | 40 MB | 40 MB |
| Requires iOS | **15.5** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [PredictWind Limited](https://appshunter.io/developer/477048590) | [Niklas Almstedt](https://appshunter.io/developer/6781553887) |

## What reviewers say

### PredictWind

[App page](https://appshunter.io/ios/app/predictwind-marine-forecasts/id477048487)

**Currently charting:** #23 Top Grossing · Weather, #49 Top Free · Weather (US App Store)

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:** Vision Pro support

**In-app purchases (16)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic - Monthly | $6.99 | per month |
| Basic - 3 Monthly | $12.00 | per 3 months |
| Basic - 3 Monthly | $12.00 | per 3 months |
| Basic - Annual | $29.00 | per year |
| Standard - Monthly | $49.00 | per month |
| Standard - 3 Monthly | $99.00 | per 3 months |
| Professional - Monthly | $99.00 | per month |
| Standard - 3 Monthly | $99.00 | per 3 months |
| Standard - Annual | $249.00 | per year |
| Professional - 3 Monthly | $249.00 | per 3 months |
| Professional - Annual | $499.00 | per year |
| Basic Subscription, 1 Month | $3.99 | one-time |
| Basic Subscription, 3 Months | $11.99 | one-time |
| Basic Subscription, 12 Months | $28.99 | one-time |
| Standard Subscription, 1 Month | $48.99 | one-time |
| Professional Subscription, 1 Month | $99.99 | one-time |

**What reviewers like**

- 👍 Accurate weather forecasts
- 🚀 Comprehensive data and features
- 💡 Useful for sailing, fishing, and other outdoor activities
- 👍 Easy to use and navigate
- 🚀 Reliable and dependable

**What reviewers complain about**

- 🐛 Occasional inaccuracies in weather predictions
- 💰 Expensive subscription costs
- 🔒 Difficult to cancel subscription
- 🔒 Locked into using proprietary hardware and services
- 🔒 Limited free features

**Reported bugs**

- App crashes or freezes on some devices
- Inconsistent performance across different locations
- Subscription issues and billing problems

**Requested features**

- 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

[App page](https://appshunter.io/ios/app/uv-index-tracker/id6781700651)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*