# SailFlow vs BayCurrents

The clearest difference is in-app purchases: BayCurrents at none against SailFlow's 10. BayCurrents also leads on rating (5.0 vs 4.7). SailFlow's advantage is ratings volume (5.8K vs 3) and update cadence (every 3 weeks vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. SailFlow sells 10 in-app purchases, starting at $3.99 per month. BayCurrents asks for nothing beyond the download.

BayCurrents holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: SailFlow has 5.8K ratings behind it against 3, so its average is the more settled of the two.

SailFlow ships an update every 3 weeks, BayCurrents every 2 months. The most recent releases landed on October 14, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | SailFlow | BayCurrents |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (5.8K ratings)](https://appshunter.io/ios/app/sailflow-sailing-forecasts/id555309964/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/baycurrents/id1591997070/reviews)** |
| Number of ratings | **5.8K** | 3 |
| Positive reviews | 84.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#39** | — |
| Size | 137 MB | 1 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [WeatherFlow](https://appshunter.io/developer/317992028) | [Monterey Bay Aquarium Research Institute](https://appshunter.io/developer/997448509) |

## What reviewers say

### SailFlow

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

**Currently charting:** #39 Top Grossing · 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


### BayCurrents

[App page](https://appshunter.io/ios/app/baycurrents/id1591997070)

Visualize high-resolution surface currents in the San Francisco Bay. This app supports various maritime activities with data up to 48 hours in the future. It operates autonomously offline, using NOAA model data enhanced by radar and tidal observations.

**Highlights:** High-resolution surface current maps, 48-hour future forecasting, Offline autonomous operation, NOAA numerical model data, Supports recreational and professional maritime activities

**In-app purchases:** none


## Frequently asked questions

### Is SailFlow free?

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

### Is BayCurrents free?

BayCurrents is free to download, with no in-app purchases.

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

BayCurrents is rated higher. SailFlow averages 4.7 out of 5 from 5.8K ratings, while BayCurrents averages 5.0 from 3 ratings.

### Do SailFlow or BayCurrents have ads?

Neither SailFlow nor BayCurrents shows ads.

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

SailFlow ships an update every 3 weeks, and BayCurrents every 2 months. Most recently, SailFlow was updated on October 14, 2026 and BayCurrents on October 4, 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.*