Early Access — Sail-OS is in alpha. Built evenings and weekends by a sailor who'd rather be on the water. Every bit of feedback makes this better. Say hi or see what's coming.
Vessel Intelligence — free, forever, for one boat

Know what your boat will actually cost you

Sail-OS is the lifecycle cost engine for serious boat owners. Every part, every service, every euro for the next ten years — in one place, in plain language. Built by a sailor, for sailors.

Start Free See How It Works
How It Works

From new owner to full picture in minutes

Start with your boat model and make it yours. Sail-OS adapts to how you actually use your boat.

Pick your boat

Select your make and model. Sail-OS loads a complete parts list based on factory specs, so you're not starting from scratch.

Make it yours

Adjust what's different on your boat. Swap out the factory engine for the refit, add that bow thruster, remove what doesn't apply.

See what's coming

Sail-OS calculates when each part will need attention and what it will cost. No more guessing how much the next five years will run you.

Stay ahead

Get nudges before things are due. When it's time to replace a part, we'll even suggest where to buy it and show you alternatives.

Features

Most vessels have data.
Few have intelligence.

Built for real boat owners who want to understand their running costs, not manage a spreadsheet.

⚓

Complete Parts Registry

Every part on your boat, organized the way a marine surveyor would. Hull, engine, rigging, electronics, plumbing -- all structured so the system can think for you.

Borrows from enterprise IT asset management -- adapted for boats

📈

10-Year Lifecycle Cost Projection

See the true cost of ownership year by year. Click into any spike to see exactly which parts are driving it and what they'll cost to replace.

No competitor projects forward at part-level granularity. This is the headline feature.

✅

No Black Boxes

Every number tells you where it came from — the manufacturer, the community of sailors, your own boat, or an honest first guess. No "the computer says so."

Layered prediction stack with source-attribution and confidence-tagging — live today in part suggestions, rolling out across the app.

🔧

Smart Maintenance Tracking

Track engine hours, set interval reminders, and never miss a winterization or haul-out. Adapts to your actual usage, not a generic schedule.

🛒

Parts Purchasing Suggestions

When something's due, Sail-OS suggests the exact OEM part and a compatible alternative, with links to marine retailers in your region. You decide what to buy.

Affiliate-supported -- we earn a small commission, you get convenience

🛡

Digital Pedigree

Every part, every service, every receipt — timestamped and tamper-proof. The kind of record that earns trust from insurers, surveyors, and the next owner of your boat.

Append-only audit trail — records can't be altered after the fact

🚢

Boat Model Templates

Start with your boat's factory configuration and customize from there. Popular models come pre-loaded with 170+ parts, real part numbers, and typical lifespans.

Pricing

Free for personal use. Fair for everyone else.

Personal sailors stay free, forever, regardless of vessel size or age — the community is the dataset and the dataset is what makes Sail-OS smarter for everyone. Commercial operators pay per vessel because the value scales with the fleet. Prices in USD.

Sailor
Free
One boat, all features, forever
  • Full parts registry
  • 10-year lifecycle cost projection
  • Maintenance scheduling
  • Insurance-ready audit trail
  • Confidence-attributed predictions
  • Full data export
Get Started
Sailor+
$29 /year
Optional supporter tier
  • Everything in Sailor
  • Supporter badge
  • Opt-in beta channel
  • Pretty PDF export styling
  • The free tier still does everything — this is for sailors who want to chip in
Get Started
Captain
$99 /year
Up to 5 boats, personal use
  • Everything in Sailor
  • Multi-vessel households (cruising couple with dinghy + tender + project boat)
  • Cross-vessel overview & reports
  • Priority support
Get Started
Coming Soon
Fleet
$79 /vessel/year
Commercial: charter, school, yard
  • Per-vessel pricing scales fairly with your fleet
  • Volume discounts: −10% at 10 vessels, −20% at 25, −30% at 50+
  • Cross-fleet analytics
  • Dedicated commercial support
Talk to us
Coming Soon
Surveyor
$349 /year
Marine surveyors
  • Unlimited read-only/temporary client vessels
  • Structured PDF survey reports
  • Pre-purchase inspection workflows
  • Client hand-off tooling
Talk to us
Coming Soon
Enterprise
Custom
OEM, insurer, large yard
  • API access & SLA
  • Aggregated fleet data licensing (DPA included)
  • White-label options
  • Dedicated success engineering
Talk to us

Vintage Yacht badge: If your boat is over 30 years old and registered with a recognised classic-yacht class association, the Captain tier is on the house. Email hello@sail-os.app with your registration to claim it.

Roadmap

Where we're headed

Sail-OS is built by one sailor in his spare time. The roadmap evolves based on what real users need -- and the speed of new features depends on how much free time and capital I have. Your suggestions steer the course.

Launched

Foundation

  • Complete parts registry with model templates
  • Lifecycle cost projections
  • Maintenance scheduling & engine hours
  • Audit trail for insurance records
  • Free tier -- one boat, all features
In progress

Smart Assistance

  • Parts purchasing suggestions with retailer links
  • Help center with guided workflows
  • Suggestion box -- tell us what you need
  • In-app changelog & update notifications
On the horizon

From Tool to Pedigree

  • Multi-boat management for fleet owners
  • Community-driven templates & part data
  • Surveyor read-only access — invite your surveyor straight into your boat's records, no PDFs flying around
  • Insurance partnerships — a well-kept Sail-OS record should earn you a better premium
  • Sale & handover reports — hand the next owner a complete digital pedigree, not a shoebox of receipts
  • Live data from your boat (NMEA 2000 / SignalK)
  • API access for integrations & mobile-optimized experience

This is a passion project, not a VC-funded startup. Features ship when they're ready, and the order changes based on what sailors actually ask for. Have an idea? Log in and use the suggestion box -- every submission is reviewed.

The Story
Emil at the D-Day monument on Omaha Beach, Normandy, in Norwegian Navy dress uniform with the American flag, 2008

Built by a sailor chasing a dream

That's me in 2008, standing at Omaha Beach during a voyage on the tall ship Christian Radich. I was doing my NCO training in the Norwegian Navy, sailing from Norway down to Italy and along the Riviera back to Spain.

Standing there, looking out over that beach, something about the sea changed for me. Since then I've worked in tech -- building enterprise systems, managing products, solving hard problems with software. But the dream has always been the same: my own bluewater sailboat, and the freedom to go anywhere.

Sail-OS is the tool I'm building for that future boat. Every feature exists because I'll need it myself -- tracking parts, predicting costs, knowing exactly what shape my boat is in before crossing an ocean.

I couldn't find software that did this well, so I'm making it. Using the same techniques we use in enterprise IT to manage millions of assets, adapted for something that actually matters to me.

Every penny this app makes goes toward one thing: funding the dream of a 50-foot bluewater cruiser and the freedom to sail it.

If Sail-OS helps you take better care of your boat, that's all the thanks I need. But if you'd like to chip in toward the dream -- any amount is deeply appreciated.

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