reChain Grib

reChain Grib

GRIB forecasts via InReach

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Free
In-App Purchases

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Details

  • Released
  • Updated
  • November 30, 2025
  • October 2, 2026

Features

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About

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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What's New in reChain Grib

1.8

October 2, 2026

reChain Grib 1.8 is a big update, built for offshore use. • Offline world map: coastlines, countries and labels now work with no network at all. • More reliable decoder: messages are saved while you wait for the full GRIB, several messages can be pasted at once, and a progress bar shows which ones are still missing. • Decode & View: open the GRIB on the map in one tap. • GRIB2: export your files as GRIB1 or GRIB2, and open GRIB2 files in the viewer. • Clearer wind map: color scale legend, tap anywhere to read wind speed and direction, isobars every 2 hPa. • Requester: your area and settings are remembered, and the message estimate is more accurate. • The app is now available in French. • Lower battery use and many bug fixes.

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Subscriptions & In-App Purchases

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