Mizzen keeps every system, spare and to-do in one place — and tells you the right next job, even with no signal.
The seasoned hand on watch you don't have to hire.
A boat is a thousand things that can go wrong, and the know-how usually lives in one person's head. Manuals in a binder, spares you can't find, a to-do list that never tells you what actually matters today. Mizzen takes you from baffled and stuck to structured, informed, and moving.
Not just a to-do list: a priority you can trust. Mizzen weighs what matters, what's doable right now, and what's risky to start — and hands you today's best job.
And it all works with no connectivity — the boat's brain lives aboard.
Toggle a system, then tap a component. On the real thing, that opens its history, docs, spares and the exact fault to check — so anyone aboard can find the thing and fix it.
Everything your boat needs, on your Mac, your phone, the tablet, the helm touchscreen — offline.
A priority you can trust — weighed by what matters, what's doable now (parts, power, weather, where you are) and what's risky to start. Today's best job, offline.
Connect a Victron GX and Mizzen watches power, batteries and charging live — turning a cryptic alarm into plain English: what it means and what to do.
Data entry is what kills boat software. Snap a nameplate and Mizzen builds the record — specs, manual, the exact spares that fit. Photograph your paper log and it digitizes it.
Grounded in your boat — its gear, manuals and history — Mizzen gets smarter every time you use it. It protects the five-figure systems you've invested in, and it's aboard at 3 a.m. offshore when the electrician isn't.
No integrator, no month-long rollout.
Snap nameplates and your paper log. Mizzen builds the equipment records — specs, manuals, the spares that fit — and digitizes the log. You just confirm.
Add a Victron GX and your power, batteries and charging flow in live — plain-English alerts, an energy dashboard, watched around the clock.
Mizzen hands you today's best job — even with no signal — and any crew can find the gear, the history and the fix.
Two plans. Founder pricing for our first boats.
Annual saves ~2 months. Founder pricing for our first boats — no credit card to request access.
On a square-rigger the crew stood watch by mast — fore, main, and mizzen. The mizzen rose over the quarterdeck: the command position, where the helm was manned and the officer of the watch kept his eye on the whole ship. The watch kept there was the watch kept over everything. That's the idea. Mizzen — always on watch.
Yes — that's the point. On the Onboard tier the server lives aboard and keeps working with zero connectivity; the cloud is backup and remote access, never required to operate.
For the live systems and energy features, a Victron GX (Cerbo or Ekrano) — the standard most serious boats already run. The core app works without it.
You do. It lives on your boat (Onboard) or your private cloud tenant, and you can export it anytime. Paper remains the ultimate fallback.
It's a smarter product that learns your boat — the technology stays out of your way. You get the right answer for the least effort, not a chatbot to operate.
Those are built for crewed superyachts and priced for them. Mizzen is built for the owner-operator — offline, photo-fast to set up, and it tells you what to do next.
The energy dashboard and plain-English alerts ship first. Live advisory guidance — recommendations you can act on — is rolling out to our first boats, carefully and safety-first. We never fake it in a demo.
We're onboarding our first boats now. Tell us about your vessel and we'll be in touch.