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  • #: 252190
  • Price: $4.99 In Apple Store
  • Category: Weather
  • Updated: 2015-03-15
  • Current Version: 2.4.1
  • 2.4.1
  • Size: 4.90 MB
  • Language: English
  • Seller: James Eddison
  • Requirements: Compatible with iPhone, iPod touch, and iPad. Requires iOS 4.2 or later.
  • © Mojoso 2010-2011
  •  Add to Favorite apps



iGrib is a GRIB (GRIdded Binary) file viewer for iOS (iPad, iPhone and iPod Touch).

This allows you to see the same data that the professionals use for forecasting.

This app is particularly valuable for people like sailors who require a longer range forecast. (The author is a sailor)

Grib files are available with up to 10 days forecast of temperature, wind, cloud cover, precipitation, pressure, relative humidity and CAPE - for various regions covering most of the world. Alternatively you can define your own files from within the app or use files from 3rd parties.

View one or more parameters at a time on the map, or touch and hold to see all the data for a particular point.

What's New in Version 2.4.1

Urgent bug fix and technical update.

From the previous version you'll most likely be updating from:

- iPhone6 and 6Plus screen compatibility

- File definition improvements:
- A new UI for defining your own files
- Include CAPE, Relative Humidity and wind GUST in your own files
- Specify a less frequent interval for the data points (to save file size)
- Include a space in the name you choose for files that you define

- The key button is disabled whilst you don't have an applicable layer visible.

- Fixed a bug that for some users prevented the automatic display of when updates are available.

- Various other minor IOS8 updates to keep with the times...

iPhone Screenshots

iGrib iPhone Screenshot 1
iGrib iPhone Screenshot 2
iGrib iPhone Screenshot 3
iGrib iPhone Screenshot 4

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Rated 2/5 based on 2 customer reviews.


5/5 stars

IGrib is a great App for Cruisers

My wife and I are full time live-aboard explorer - cruisers (moored in the Florida Keys as I write this).

We have been using iGrib for several weeks and must rave about how great an app it is. We depend on the winds to sail Angel Louise, our Catalac 12 Meter Catamaran. We have found the product superb up to now as we can access the Grib files showing relevant winds and expected weather for several days in the areas we sail.

We are familiar with using Grib files on our Mac with MacENC software and over Sailmail, but this is a super program for thos with an iPad, iPhone or iPod.

I hope the developers continue to extend the product so as to show vessel position via built-in gps chp or an add-on gps plugin like the Bad Elf gps, but the current version is great. We will use it when we have internet along the US east coast and hopefully in WiFi areas to download the seven day forward looking winds forecasts this utility picks up. I can be contacted at edkelly at netins dot net if anyone has questions.

0/5 stars


It doesn't import grb files, you have to download their file which s huge, 1.2 MB for the US. Unless that is corrected it is not worth the $4.99 price. Wish the description was not so mis-leading.


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The information may be outdated (2017-03-08 23:35:06). For actual information go to iTunes

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