# PredictWind vs SailFlow

The clearest difference is update cadence: PredictWind at every 9 days against SailFlow's every 3 weeks. PredictWind also leads on ratings volume (33K vs 5.7K). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. PredictWind sells 16 in-app purchases, starting at $6.99 per month and SailFlow sells 10 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 4.7 for SailFlow. That said, the two scores are not equally well evidenced: PredictWind has 33K ratings behind it against 5.7K, so its average is the more settled of the two. Written reviews split almost evenly too, at 84% and 84% positive.

PredictWind ships an update every 9 days, SailFlow every 3 weeks. Both last shipped on September 25, 2026.

## The numbers

| Metric | PredictWind | SailFlow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (33K ratings)](https://appshunter.io/ios/app/predictwind-marine-forecasts/id477048487/reviews)** | [4.7 (5.7K ratings)](https://appshunter.io/ios/app/sailflow-sailing-forecasts/id555309964/reviews) |
| Number of ratings | **33K** | 5.7K |
| Positive reviews | 84.1% of reviews | **84.4% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#25** | #47 |
| Size | 40 MB | 138 MB |
| Requires iOS | 15.5 | **15.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [PredictWind Limited](https://appshunter.io/developer/477048590) | [WeatherFlow](https://appshunter.io/developer/317992028) |

## What reviewers say

### PredictWind

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

**Currently charting:** #25 Top Grossing · Weather, #68 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


### SailFlow

[App page](https://appshunter.io/ios/app/sailflow-sailing-forecasts/id555309964)

**Currently charting:** #47 Top Grossing · Weather, #175 Top Free · Weather (US App Store)

Get hyper-accurate, real-time marine weather forecasts and live wind reports. This app uses proprietary weather systems and integrates public data for detailed wind, wave, tide, and radar information. Customize alerts and track your favorite sailing spots.

**Highlights:** Proprietary Tempest Weather Systems, Live wind and current station reports, AI-enhanced Nearcast forecasting, Radar, satellite, and precipitation maps, Tides charts and wave height, Customizable wind notifications, Nautical charts

**Features:** macOS Compatibility, Siri integration, Apple Watch app, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus | $3.99 | per month |
| Plus | $5.49 | per month |
| Gold | $14.99 | per month |
| Pro | $14.99 | per month |
| Pro - Pay As You Go (auto-renewing) | $19.99 | per month |
| Gold | $21.99 | per month |
| Plus | $44.99 | per year |
| Plus | $44.99 | per year |
| Pro | $119.99 | per year |
| Gold | $179.99 | per year |

**What reviewers like**

- 🚀 Easy to navigate
- 🚀 Accurate wind forecasts
- 🚀 Helpful for planning
- 🚀 Great data and graphics
- 🚀 Reliable and trustworthy

**What reviewers complain about**

- 🐛 Occasional inaccurate forecasts
- 🐛 Crashes or freezes
- 💰 Expensive subscription
- 🔍 Difficult to find specific locations
- 🔍 Confusing interface at times

**Reported bugs**

- Recent update caused app to crash
- Favorites list not working properly
- Wind direction arrow pointing incorrectly

**Requested features**

- Add more local weather stations
- Improve map and location search
- Provide more forecast models
- Add support for Apple Watch
- Fix wind direction arrow issue


## Frequently asked questions

### Is PredictWind free?

PredictWind is free to download, with in-app purchases available.

### Is SailFlow free?

SailFlow is free to download, with in-app purchases available.

### Which has better reviews, PredictWind or SailFlow?

PredictWind is rated higher. PredictWind averages 4.8 out of 5 from 33K ratings, while SailFlow averages 4.7 from 5.7K ratings.

### Do PredictWind or SailFlow have ads?

Neither PredictWind nor SailFlow shows ads.

### Which is updated more often, PredictWind or SailFlow?

PredictWind ships an update every 9 days, and SailFlow every 3 weeks. Most recently, PredictWind was updated on September 25, 2026 and SailFlow on September 25, 2026.

### Which is more popular, PredictWind or SailFlow?

PredictWind currently peaks at #25 in the App Store charts, and SailFlow at #47. Chart position reflects recent download velocity rather than total install base.

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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.*