# LuckGrib vs BayCurrents

The clearest difference is in-app purchases: BayCurrents at none against LuckGrib's 6. BayCurrents also leads on iOS requirement (15.0 vs 18.4). LuckGrib's advantage is ratings volume (338 vs 3). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. LuckGrib sells 6 one-off in-app purchases. BayCurrents 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 BayCurrents. That said, the two scores are not equally well evidenced: LuckGrib has 338 ratings behind it against 3, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 13, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | LuckGrib | BayCurrents |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (338 ratings)](https://appshunter.io/ios/app/luckgrib/id1318450117/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/baycurrents/id1591997070/reviews)** |
| Number of ratings | **338** | 3 |
| Positive reviews | 92.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 173 MB | 1 MB |
| Requires iOS | 18.4 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Craig McPheeters](https://appshunter.io/developer/590365129) | [Monterey Bay Aquarium Research Institute](https://appshunter.io/developer/997448509) |

## 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


### 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 LuckGrib free?

LuckGrib 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, LuckGrib or BayCurrents?

BayCurrents is rated higher. LuckGrib averages 4.9 out of 5 from 338 ratings, while BayCurrents averages 5.0 from 3 ratings.

### Do LuckGrib or BayCurrents have ads?

Neither LuckGrib nor BayCurrents shows ads.

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

LuckGrib ships an update every 2 months, and BayCurrents every 2 months. Most recently, LuckGrib was updated on October 13, 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.*