# LuckGrib vs SailWindow

The clearest difference is price: LuckGrib at Free against SailWindow's $0.99. LuckGrib also leads on ratings volume (338 vs 2). SailWindow's advantage is in-app purchases (none vs 6) and update cadence (every 5 days vs every 2 months). On rating, ads, device support and iOS requirement there is nothing between them.

LuckGrib is free to download; SailWindow costs $0.99 up front. LuckGrib sells 6 one-off in-app purchases. SailWindow asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for LuckGrib against 5.0 for SailWindow. That said, the two scores are not equally well evidenced: LuckGrib has 338 ratings behind it against 2, so its average is the more settled of the two.

LuckGrib ships an update every 2 months, SailWindow every 5 days. The most recent releases landed on October 13, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | LuckGrib | SailWindow |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [4.9 (338 ratings)](https://appshunter.io/ios/app/luckgrib/id1318450117/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/sailwindow/id6762101772/reviews)** |
| Number of ratings | **338** | 2 |
| Positive reviews | 92.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | — | **#84** |
| Size | 173 MB | 3 MB |
| Requires iOS | 18.4 | **18.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Craig McPheeters](https://appshunter.io/developer/590365129) | [DIMITRY BRAZNICHENKO](https://appshunter.io/developer/1876093981) |

## What reviewers say

### LuckGrib

[App page](https://appshunter.io/ios/app/luckgrib/id1318450117)

This app provides advanced weather data visualization, downloading, and routing for sailors and weather enthusiasts. It offers access to a wide range of global and high-resolution weather and ocean models, with features for optimizing routes and analyzing complex weather parameters. Remote access via satellite is also supported.

**Highlights:** GRIB file reader, viewer, and downloader, Advanced weather routing and route analysis, Satellite data access, High-resolution global and regional weather models, Ocean current models, Detailed weather parameter analysis

**Features:** Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 14-day Trial | Free | one-time |
| 14 day trial of Offshore Data | Free | one-time |
| 14 day Weather Routing trial | Free | one-time |
| LuckGrib weather data access | $29.99 | one-time |
| Premium Offshore Data access | $59.99 | one-time |
| Weather Routing access | $59.99 | one-time |

**What reviewers like**

- 🚀 Excellent weather forecasting and routing
- 👍 Intuitive and user-friendly interface
- 💡 Wide range of weather models and data sources
- 🚢 Tailored for sailors and offshore navigation
- 💰 One-time purchase, no subscription fees

**What reviewers complain about**

- 🐛 Occasional issues with GRIB file downloads
- ⚠️ Steep learning curve for some features
- 🔍 Lack of support for some boat types (e.g., catamarans)

**Reported bugs**

- Reported issues with 'no wind data for start time'
- Occasional app crashes or freezes

**Requested features**

- Integration with boat instruments and data logging
- More advanced routing options and customization
- Improved support for regional weather models


### SailWindow

[App page](https://appshunter.io/ios/app/sailwindow/id6762101772)

**Currently charting:** #84 Top Paid · Weather (US App Store)

This app provides sailors with a focused marine weather view, combining forecast conditions, alerts, and buoy observations. It helps users quickly assess if conditions are good, questionable, or unsafe for sailing.

**Highlights:** Sailing window summary (Good, Caution, No-Go), NOAA marine forecast text, Wind, wave, and temperature charts, Active marine and weather alerts, Nearby buoy observations, Saved sailing locations, Local notification rules

**In-app purchases:** none


## Frequently asked questions

### Is LuckGrib free?

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

### Is SailWindow free?

SailWindow costs $0.99, with no in-app purchases.

### Which has better reviews, LuckGrib or SailWindow?

SailWindow is rated higher. LuckGrib averages 4.9 out of 5 from 338 ratings, while SailWindow averages 5.0 from 2 ratings.

### Do LuckGrib or SailWindow have ads?

Neither LuckGrib nor SailWindow shows ads.

### Which is updated more often, LuckGrib or SailWindow?

LuckGrib ships an update every 2 months, and SailWindow every 5 days. Most recently, LuckGrib was updated on October 13, 2026 and SailWindow on September 26, 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.*