Free
The whole record for one boat. No deadline, no card.
- 1 boat, with maintenance, documents, photos, parts, expenses and sharing
- 25 document reads to set up your first boat
- 10 questions a month in Ask and Troubleshoot
Boat maintenance app and digital logbook
The living record for the boat you actually own.
Keep manuals, service history, parts, photos, and receipts in one private, searchable record — then see what’s due next by date or engine hours.
Free for your first boat. No credit card, and private by default.
On iPhone, iPad and the web.
Built for owners of sailboats, center consoles, cruisers and trawlers, pontoons, ski and wake boats and classic boats.
Sound familiar?
- Sat 07:40
At the fuel dock. The engine manual is in a drawer at home.
Every manual on your phone.
- Sun 14:15
Was the impeller changed in ’24 or ’25? Nobody aboard agrees.
Every job dated and searchable.
- Tue 09:05
The mechanic needs the part number. It’s on a receipt. Somewhere.
Receipts turned into records.
- Fri 16:30
The surveyor asks for service records. You hand over a shoebox.
A history worth showing.
Start with the boat in front of you.
Add your boat
A name is enough to start. Or begin from a public model page and get the factory specs.
Drop in what you have
Photos, manuals, receipts and yard invoices. Your first boat includes 25 free document reads.
See what’s next
Today puts overdue and due-soon work on top, by calendar date or engine hours.
Know what’s due next.
Overdue and due-soon work sits at the top of Today, so the next job is never a guess.
- Intervals by calendar date or engine hours
- Seasonal lay-up and spring commissioning checklists
- Every finished job stays dated and searchable
Coming up on Sea Glass
Engine hours 552.4
- Engine oil and filters4 days overdue
- Inspect standing riggingDue in 9 days
- Raw-water impellerDue at 600 engine hours
- Bottom paintDue next spring
Turn paperwork into records.
Scan a multi-page manual or snap a yard invoice. VesselTwin reads it and suggests the specs, equipment and service items for you to review.
- Nothing is saved until you review it
- Your first boat includes 25 free document reads
- On iPhone, captures save without signal and sync later
Ask your boat. Get answers with sources.
Ask “what oil does the engine take?” and get an answer from your own manuals and records, with the page it came from.
- Ask is in the iPhone app
- Troubleshoot a symptom with safety-first guidance on iPhone and the web
- Also works with ChatGPT and Claude, read-only. How AI access works
Bring the right people aboard.
Invite a co-owner, a captain, crew or a read-only advisor, and send your mechanic exactly one job with a secure link. You decide who sees what, and for how long.
- Your partner and crew see the same record you do
- A mechanic gets one job, not your whole boat
- Your HIN, registration and marina location never appear on public pages
Who’s aboard
- SamCo-ownerFull record
- Harbor MarineMechanicOne job, by secure link
- RileyCrewChecklists and logs
- SurveyorRead-only advisorUntil you end it
Free for your first boat. Owner Pro when you need more.
Owner Pro
For a second boat, a big refit or a lot of paperwork.
- Up to 5 boats in one account
- 100 document reads every month
- 300 questions a month in Ask and Troubleshoot
Owner Pro is paid early access. Cancel any time, and your records stay yours either way.
Your boat, your record.
Private by default
Your HIN, registration and marina location never appear on public pages.
No ads in your record
We never send boat records to ad platforms.
Your data leaves with you
Export your account data any time. Downgrading never deletes a record.
Built by a boat owner
VesselTwin started with one person, one boat and one binder. Read the story
Questions owners ask
Is VesselTwin really free?
Yes. The Free plan covers one boat with the whole record: maintenance, documents, photos, parts, expenses and sharing. It has no deadline and needs no card. Owner Pro is optional, for more boats and more AI help.
What kind of boat does it work for?
Any boat you own, sail or power, from a center console to a trawler. Start from a public model page or just type your boat’s name.
Do I need to upload everything first?
No. A boat name is enough to start. Add manuals, receipts, photos and service notes whenever you have them.
Who can see my boat’s records?
Only you and the people you invite. Your HIN, registration and marina location never appear on public pages.
Does it work without signal?
The iPhone app saves new captures while you’re offline and syncs them when you’re back in range. The web app needs a connection.
Can I get my data out?
Yes. Export your account data any time, and downgrading never deletes a record.
Your boat changes. Its record should keep up.
Start with its name today. Add the service, parts, photos, and lessons as you go.
Free for your first boat. No credit card, and private by default.