Vessel Readiness
Live status of critical systems — engine hours, battery state, bilge, and nav lights — accessible offline, synced when connected.
Software · live
One app for everything
your boat needs.
Built from real nautical miles and used on a real vessel across the North Atlantic and Caribbean. When we adapt Hullmark for your fleet, you get the code, you host it, it's yours.
Hullmark is an offline-first boat management platform: vessel readiness, navigation chart, maintenance log, and boat documents in one place. It runs without internet signal and syncs when you connect. Built from real nautical miles on a real vessel through the North Atlantic and the Caribbean approach.
What is Hullmark?
A boat platform that runs offline-first: live vessel readiness, navigation chart, maintenance log, and the paperwork of boat ownership in one place. Built from real miles, used on a real boat.
live Deployed and usable right now. No waitlist.
Open Hullmark What do you get with Hullmark?
A named system of 4 components — not a list of features, a description of what the software actually does.
Chart Integration
Real nautical chart display with position tracking. Works without signal; syncs corrections and AIS data when you are back in range.
Log and Reminders
Recurring tasks, service history, and part records. Intervals auto-calculate from hours or calendar — whichever comes first.
Boat Vault
Registration, insurance, MMSI certificate, and inspection records in one encrypted location. No more searching the nav station before a marina visit.
Who built this, and why does it work?
Built from real nautical miles — used on a real vessel in the North Atlantic, the Caribbean 600 approach, and day-to-day marina life. Not designed from a desk.
— Randall Marshall · 3D3D · New Brunswick, Canada · info@3d3d.ca
How much does it cost to build something like Hullmark?
Three fixed tiers for scoped work. All include full source handover, your hosting, your keys — no ongoing seat licence required.
Starter build
$1,500
One-time fixed-scope deliverable. Best for single-feature tools, internal utilities, and clearly defined automation.
Mid-scope build
$2,500
Discovery, design, build, and handover. Best for client-facing apps and systems that need a defined user experience.
Full custom build
$5,000
Complete scope, full source, and production deployment. Best for commercial apps and anything shipping to paying users.
All prices CAD. We scope before we quote — describe the problem at info@3d3d.ca and we will respond within 24 hours.
Questions about Hullmark.
Does Hullmark work without an internet connection?
Yes. Hullmark is offline-first: the vessel readiness dashboard, maintenance log, and document vault all work without signal. The chart syncs corrections and AIS data when you connect.
Can Hullmark be adapted for a fleet or marina software system?
Yes. Email info@3d3d.ca with your use case and vessel count. Fleet-management variants are scoped per deployment.
What does it cost to build a version of Hullmark for my business?
Build work starts at $1,500 for scoped deliverables, $2,500 for mid-scope custom builds, and $5,000 for full production systems. We scope before we quote — describe the problem first.
Who maintains Hullmark?
Randall Marshall and the 3D3D team in New Brunswick. The same people who built it push updates and fix bugs. No offshore handoffs.
Owned software
Want one of these for your business?
Describe the problem. We design it, build it, and hand over the keys. No seat licences, no lock-in — you own what we build.