reChain Grib vs Circuit Skipper

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

Troubleshoot boat electrical problems, size wires and fuses, and keep a clear record of your onboard systems. Circuit Skipper is an AI assistant for marine electrical systems. FIND THE FAULT Ask about boat wiring, batteries, charging, and electrical faults. Get clear explanations that help you understand the problem and decide what to do next. SCAN YOUR EQUIPMENT Photograph a panel, battery bank, breaker, or other onboard equipment. Skipper helps identify visible components and can add them to your boat. GET INFORMED ANSWERS Skipper can draw on ABYC and ISO standards and manufacturer documentation. When sources are available, they are cited so you can inspect them yourself. GET LIVE HELP Point your camera at onboard equipment and talk through what you see in real time. Get spoken answers, help identifying components, and a clearer record of your boat as you go. Available with Pro. SIZE WIRES & FUSES Calculate wire-gauge and fuse recommendations using built-in ABYC and ISO ampacity data. Enter the current, run length, and voltage-drop target. Works offline—no AI needed. KNOW YOUR BOAT Map your DC and AC systems and attach reference photos. Build a clear record for yourself, your electrician, or the boat’s next owner. START FREE Use Circuit Skipper free with one vessel and 2 Skipper requests per calendar month. Upgrade to a monthly Pro subscription for unlimited vessels, Skipper Live, and a monthly Skipper AI allowance. PRIVATE BY DEFAULT No account is required. Add an email only if you want to recover your data on a new device. CONNECTIVITY Skipper’s AI chat, photo scans, and live video features require an internet connection. Wire and fuse calculations work offline. SAFETY Circuit Skipper is an informational tool and is not a substitute for a qualified marine electrician. Follow applicable standards, manufacturer instructions, and local electrical codes. Consult a professional for safety-critical work. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/