Bosun's Mate

Bosun's Mate is the quiet, beautiful captain's log every boat owner deserves. Whether you have one boat or a fleet, Bosun's Mate keeps every receipt, every oil change, every fuel fill-up, and every cruise in one place — and across every device you own.

MULTI-VESSEL MANAGEMENT
Powerboat, sailboat, or commercial fishing — each vessel gets its own log with the right categories pre-loaded. Switch between boats in a tap.

MAINTENANCE THAT KNOWS WHAT'S OVERDUE
Schedule service by engine hours, calendar date, or seasons. Bosun's Mate watches the clock and tells you what needs attention.

FUEL & ENGINE HOURS, BEAUTIFULLY
Track fill-ups, engine hours, and your MPG sweet spot across RPM ranges. Plan trips with confidence — know exactly how far you can go on a tank.

CRUISING LOG
Capture every trip: departure and return dates, hours underway, distance in nautical miles, anchorages visited, and photos. Average speed is computed automatically. Your seasons, captured.

AI RECEIPT SCANNING
Snap a receipt with your phone camera. Our AI reads the vendor, amount, and date for you. Multi-photo entries supported.

SHARE WITH YOUR CREW — FREE
Invite your partner, your mechanic, or your co-captain to your vessel. Role-based permissions (Viewer, Editor, Admin) keep everyone on the same page. No per-seat fees, ever.

COSTS AND BUDGETS IN ANY CURRENCY
USD, CAD, EUR, GBP and more. Set a display currency for clean YTD reports. Built for cross-border boaters.

ACTIVITY FEED
A chronological log of every action on your boat. Brilliant for shared vessels — see exactly who logged what, when.

WEB, iPHONE, AND ANDROID — IN SYNC
Add a fuel fill-up at the dock on your phone, review the spreadsheet on the couch. Same data, every device.

EXPORT TO PDF
Full vessel history as a clean, professional PDF. Perfect for surveys, insurance renewals, or selling your boat.

NO ADS. NO TRACKING. NO NONSENSE.
Bosun's Mate is built by captains, for captains. We don't sell your data, we don't track you between sessions, and we don't show ads.

7-DAY FREE TRIAL
Start free. No credit card required. Subscribe only if it earns its place on your dock.

Built in Whitehorse, Yukon by Bell Health Services and Technology.

Support: captain@bosunsmate.app
Web: https://bosunsmate.app