reChain Grib

GRIB forecasts via InReach

Free · In-App Purchases · Designed for iPad. Not verified for macOS.

reChain Grib is the simplest way to request, decode, and view GRIB weather files when you’re offshore with a Garmin inReach device. Built for skippers who need reliable, lightweight, fully offline weather tools, it keeps you informed even far beyond any network. → Generate GRIB Requests Create precise GRIB requests (wind, pressure, waves…) with a clean, intuitive interface. Copy the request and send it via your inReach to a dedicated email—no internet required. → Decode GRIB Chunks Paste the GRIB message chunks received by your inReach. reChain Grib automatically decodes them into a downloadable GRIB file. → View GRIB Forecasts (Built‑in Viewer) Open the GRIB directly inside the app and explore the forecast timeline with a clean, lightweight viewer designed for offshore use. → Built for Offshore Use • 100% offline • Extremely lightweight → Why reChain Grib? Because offshore weather access should be simple, reliable, and available anywhere. Whether you’re crossing an ocean or sailing along a remote coast, reChain Grib gives you the essential tools to request and view weather whenever you need it. → Notes Requires a Garmin inReach device for sending/receiving messages. reChain Grib is not affiliated with Garmin. Terms of Use: https://www.jcskipper.com/rechain/rechain_terms.html

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Increase GRIB max resolution from 0,5° to 0,25°

Version 1.7

The developer, Jean-Charles Levenne, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Identifiers

Privacy practices may vary based, for example, on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Provider
  • Jean-Charles Levenne
Size
  • 10.1 MB
Category
  • Utilities
Compatibility
Requires iOS 16.6 or later.
  • iPhone
    Requires iOS 16.6 or later.
  • iPad
    Requires iPadOS 16.6 or later.
  • Mac
    Requires macOS 13.5 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
  • English
Age Rating
4+
In-App Purchases
Yes
Copyright
  • © 2026 JCskipper
  • Developer Website
  • Privacy Policy

    • More by Jean-Charles Levenne

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