Squid Mobile is a free, powerful and yet the easiest and most comprehensive requester and viewer of Grib Files (weather files).

Now available for a large audience of sailors. It doesn’t matter if you are an occasional cruiser or a keen racer, if you are an off-shore solo navigator or coastal dinghy sailor. Squid has all the forecasts data you need, selected for their best possible accuracy, covering any region, any playground around the globe.

Squid Mobile App has been developed by GreatCircle. Chosen by the most demanding navigators since 2010, on board almost every sailing boat, while tempting and often succeeding, a world speed sailing record formalized by the WSSRC.

In 2015 Squid was the exclusive supplier of weather data for the Volvo Ocean Race, the Official Partner providing weather data for 300 boats during the Rolex Fastnet Race, participated in the Transpac and Atlantic and North-East Passage records… and still delivered daily thousands passionate sailors with high resolution forecasts and observations.

Main Features:
Multi model viewer to compare and analyze con - divergences
Routing and way-point editor with : bearing Compass, database of major cruising and racing boat polars, roadbook reporting, cloud routing and multiple road comparisons.
Up to 10 days forecasts by steps of 1 or 3 hours
Direct grib download or as mail attachment for easy sharing and opening in other applications
Multi-model meteograms for easy comparisons (MSLP and wind in V1)
Customized views by color gradients, isolines, barbs and arrows.
Combining both CPU and graphical processor for smooth animations
Compatible iOS9
Compatible with Iridium GO!®

Available variables:
- atmospheric
Wind, 10m, 925 Hpa, and gusts
Cloud cover
Relative humidity
- oceanic
Currents, direction and force
Sea state, swell, windwaves, height and direction

Our in-app purchases include auto-renewable subscriptions, the extensive list and prices are visible in the app. You can purchase subscriptions for 1 week, 3 months or 1 year.

• Payment will be charged to iTunes Account at confirmation of purchase
• Auto-renewing subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period
• Account will be charged for renewal within 24-hours prior to the end of the current period
• Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase

What’s New

Version 3.31

Bug fix

Ratings and Reviews

4.8 out of 5
42 Ratings

42 Ratings

melriobrazil ,

Great, user-friendly routing app also good for viewing high resolution GRIB files

I like Squid a lot because it’s easy to use and to demo to students (I’m a volunteer sailing instructor in the Caribbean, Mediterranean, and Lake Michigan).

Squid is a simple, user-friendly routing app with sufficiently sophisticated functionality. For those wanting something even simpler, it can be used as a GRIB viewer with access to many high resolution models.

It allows you to choose the boat’s polar and restrict the route with waypoints. For cruisers it’s useful to have parameters that allow the user to change the standard polars, scale them down to a certain percentage, and include running the engine if the boat speed drops below a certain amount.

Each time I demo it, my students comment how great it is. I like very much myself so I highly recommend it.

App Privacy

The developer, The Great Circle SPRL, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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