# PocketGrib

> Mobile GRIB file viewer for global weather data analysis and forecasting. (iPhone/iPad app by Nicko Brennan.)

- Source: https://appshunter.io/ios/app/pocketgrib/id429394638 (this page in markdown: same URL + `.md`)
- Developer: [Nicko Brennan](https://appshunter.io/developer/429394641)
- Category: Weather, Navigation
- Price: $5.99
- Rating: 4.80/5 from 575 App Store ratings · 252 written reviews indexed
- Age rating: 4+
- Requires: iOS 9.3 · 37 MB
- Languages: American English, Dutch, French (France), German (Germany), Italian, Russian, European Spanish
- Released: 2011-04-06
- Data updated: 2026-09-18
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/pocketgrib/id429394638/reviews.md

## What is PocketGrib?

With PocketGrib you can download, view and analyse global weather data while on the go.

Wind, precipitation, pressure, temperature, wave and other data extracted from GRIB files are displayed through our powerful GRIB viewer interface.

Perfect for sailors (both sailing and in the pub), windsurfers, storm chasers, outdoor enthusiasts, amateur and professional meteorologists.

Features
- Choose your map location and have weather information overlaid
- Animation of weather maps
- Weather can be viewed as a meteogram (graph) or raw data
- Configurable download to minimise file sizes (great for roaming)
- GRIB files can be downloaded to your PC via iTunes
- Displays online and offline
- Support for 3rd party GRIB files

PocketGrib downloads and displays the following weather types:
- Wind speed and direction (10 m above ground/sea)
- Precipitation (rain, snow etc)
- Pressure
- Air temperature
- Waves (including Mediterranean and Black Sea)
- Cloud cover
- Relative humidity
- CAPE (Convective Atmospheric Potential Energy)
- Current (Atlantic only)
- 500mb Height

Direct download of GRIB data from NOAA's GFS (Global Forecast System) model
- Forecasts up to 8 days
- Data steps: 3hr, 6hr, 12hr
- Worldwide coverage
- Resolution: 0.25°, 0.5°, 1°, 2°
- Data updated 4 times a day (every 6 hours)
Also support for COAMPS (0.2° resolution), WW3, NOGAPS, RTOFS (Currents) and FNMOC WW3 (Mediterranean wave) models.

GRIB forecasts are published without human intervention or review. As such, the end user requires some knowledge and awareness. Most GRIB models do NOT accurately forecast hurricanes and tropical cyclones so their use should be combined with specific hurricane and tropical cyclone forecasts.

## Key features

- Download and view global weather data
- Animated weather map displays
- Meteogram and raw data views
- Configurable GRIB file downloads
- Offline weather data access
- Support for multiple weather models

## Chart rankings

- #95 in Top Paid · Weather (US App Store)

## What do users think of PocketGrib?

Overall sentiment: positive

**Pros**

- 🚀 Easy to use
- 🚀 Accurate weather forecasts
- 🚀 Comprehensive data
- 🚀 Reliable and dependable
- 🚀 Useful for planning sailing/boating trips
- 🚀 Great for weather enthusiasts
- 🚀 Efficient data usage
- 🚀 Excellent app for offshore sailing

**Cons**

- 🐛 Occasional crashes or issues with downloads
- 🐛 Wind speed sometimes underestimated
- 🐛 Lack of wave height data for some areas

**Commonly reported bugs**

- Corrupted map display after recent update
- Inability to download GRIB files in some areas

**Most requested features**

- Add wave height data
- Improve graphics and visuals
- Provide more weather models to compare
- Faster data updates
- Ability to plot boat position and route

## Recent user reviews (10 of 252)

All indexed reviews: https://appshunter.io/ios/app/pocketgrib/id429394638/reviews.md

### 5/5 — Seewetter wie es sein soll

*2022-10-16*

Perfekt soweit wir das im gesamten Mittelmeer beurteilen können, eine der Grundlagen zur Wetterplanung auf See

### 4/5 — Gute Ergänzung

*2022-09-07*

Durch die Möglichkeit der Offline-Nutzung eine gute Ergänzung zu anderen Wetter-Apps, insbesondere bei längeren Passagen.

### 5/5 — Love it

*2022-04-23, version 1.2.11*

Been using it for years, love it.

### 5/5 — Great for Planning Hiking Trips

*2021-08-21, version 1.2.11*

Lets you see the weather in detail for a specific location. In my experience, it’s predictions are accurate.

### 5/5 — First app I check

*2021-08-03, version 1.2.11*

This app gives so much info with a very simple display. This is the first app I check when deciding when to take the boat out.  While I am on the water I make it part of my routine to check the app to see what to expect in the following hours and days. This is one of my must have apps to go sailing with.

### 1/5 — Not usable for Great Lakes.

*2021-07-21, version 1.2.11*

Not usable on Great Lakes.

### 5/5 — Très bien

*2021-06-13*

Chargement rapide et clair de lecture. Je recommande tout simplement

### 5/5 — 更新版本

*2021-01-17*

两年多没更新了，更新一下支持中文吧！

### 5/5 — L’appli est top !

*2020-09-22*

Le seul bémol est la barre play avec les boutons bleus sur fond noir. C’est illisible avec le soleil. Sinon génial.

### 5/5 — Awesome

*2020-04-03*

I love it because it allows you to download the data and analyze it carefully when there is no data connection on your phone

## Frequently asked questions about PocketGrib

### What does PocketGrib do?

PocketGrib allows you to download, view, and analyze global weather data from GRIB files. It displays information like wind, precipitation, pressure, temperature, and waves through an intuitive interface with animated maps and graphical representations.

### What are the key features of PocketGrib?

Key features include choosing map locations to overlay weather information, animating weather maps, viewing weather as a meteogram or raw data, configurable downloads to minimize file sizes, and offline viewing capabilities. It also supports third-party GRIB files.

### Is PocketGrib free to use?

Based on the provided information, PocketGrib is available for free. There are no mentions of subscription fees, in-app purchases, or advertisements within the application's description.

### Who is PocketGrib designed for?

This app is ideal for sailors, windsurfers, storm chasers, outdoor enthusiasts, and both amateur and professional meteorologists. Anyone who needs detailed, on-the-go weather forecasting and analysis will find it useful.

### What kind of weather data can I view with PocketGrib?

PocketGrib displays a wide range of weather data including wind speed and direction, precipitation, pressure, air temperature, wave data, cloud cover, relative humidity, CAPE, currents, and 500mb height. It can download data from various models like NOAA's GFS.

## Version history (last 5 releases)

### 1.2.11 — 2018-09-12

-Additional GRIBs available in the Catalog
-Wind gusts now shown in the Data screen

### 1.2.10 — 2016-08-01

-Wind gusts now available in GFS model

### 1.2.9 — 2015-11-01

-Support for downloading and viewing weather that crosses the 180 degree meridian
-Fixed download of GMN Ocens GRIB files which moved to a new location

### 1.2.6 — 2015-05-14

-Added 0.25° resolution GFS GRIB download option

### 1.2.5 — 2014-10-24

-Fixed issue that when opening PocketGrib in landscape orientation not all the screen is active

## Apps similar to PocketGrib

| App | Rating | Price | Category |
| --- | --- | --- | --- |
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| [Seasonality Pro](https://appshunter.io/ios/app/seasonality-pro/id949893263) | 3.7 (6) | Free | Weather |
| [Marine Barometer](https://appshunter.io/ios/app/marine-barometer/id1370744934) | 4.5 (33) | Free | Weather |

## Related topics

[gribe](https://appshunter.io/ios/topics/gribe) · [gtribe](https://appshunter.io/ios/topics/gtribe)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-18.*