Package
Release type: Public production
Use the checksum if you want to verify that the downloaded app package matches the published file.
Mac Passage Companion
KSF Passage Companion
A native macOS passage logbook, readiness checklist, Voyage Story, vessel passport, NMEA input, blackbox recorder, and voyage archive tool for sailors who want cleaner passage routines and better records.
Free Software, No Warranty
KSF Passage Companion is provided free of charge and is used entirely at your own risk. There is no warranty, no guarantee of fitness for any purpose, and no liability accepted for loss, damage, regulatory issues, missing safety checks, navigation decisions, data loss, or other consequences from using it. It does not replace official navigation, approved safety equipment, SOLAS/COLREG obligations, legal logbook requirements, or skipper judgement.
Useful On A Real Boat
Passage Companion is built around the practical jobs sailors repeat before and during a trip: checking readiness, writing log entries, keeping document/service dates visible, recording useful instrument data, and creating a clean archive afterwards.
- Formal logbook with manual and scheduled entries.
- One-click live NMEA fill for position, COG, SOG, heading, wind, weather, depth, attitude, and sea-state.
- Separate Voyage Story notes, media links, and route markers.
- Coastal, Passage, and Ocean readiness checklists.
- Checklist filtering by boat, crew, passage days, offshore distance, and children onboard.
- Immutable readiness snapshots with SHA-256 verification.
- Printable walk-around checklists for paper use onboard.
- Crew & Vessel Passport for documents, safety gear, medical items, contacts, service, and expiry dates.
- NMEA0183 USB/serial and UDP input.
- Raw NMEA blackbox recorder with duplicate throttling.
- Departure packets and voyage archives with manifests.
- KML, GPX, CSV, printable logbook, route map, and animated route tour exports.
- Versioned backups and upgrade-safe data files.
Application Preview
Newest screenshots are shown first. Click any image to open it full size.
User Manual
Read the manual before relying on the app for passage work. The same manual is bundled inside the app under the Help menu.
Part Of The SailingKSF Ecosystem
These tools can run standalone, or together as part of the larger SailingKSF offshore sailing ecosystem.
KSF AI Offshore Autopilot Suite
The onboard control and safety platform: AI steering, UI, gateway, sensors, weather, logs, and iPad workflows.
KSF AIS Dispatcher
A native macOS utility that reads local AIS/NMEA0183 and forwards approved AIS targets to internet receiver services.
KSF Passage Companion
This app: logbook entries, readiness checks, Voyage Story, route exports, and passage archives.
KSF NMEA Sniffer
A native macOS diagnostic viewer for USB NMEA2000/CAN, USB NMEA0183, and read-only Signal K over WLAN/LAN.
Safety Note
The app is for passage organization, record keeping, diagnostics, and export. It does not steer the boat, transmit on NMEA/AIS/VHF, replace watchkeeping, or replace official safety/navigation equipment.