Kai runs the shared side of owning a boat: who sails when, what it cost, and what the boat needs next. Every owner sees the same book.

Boats run on a calendar, not a year. Kai keeps commissioning, the weeks everyone wants, service intervals and haul-out in front of the group, so none of it sneaks up.
Splash date, recommissioning checklist and the sea trial on the calendar the whole group sees.
July, August and holiday weeks allocated in advance by the group's rules, with a waitlist that fills a cancelled week automatically.
Oil, impeller, zincs and antifouling tracked against hours logged after every trip, not against someone's memory.
Yard date, cradle, shrink-wrap and storage costs coordinated in one place and split the way the group agreed.
Electronics upgrades, sail repairs and warranty work assigned to an owner and followed through.
Last year's haul-out bill, what the surveyor flagged, who handled what: all still there next April.
A yacht share is property. Kai keeps a proper share register next to the calendar and the accounts, so holdings drive booking rights and costs, and a change of owner is a recorded transfer rather than a spreadsheet edit.
| Owner | Shares | Peak weeks | Balance |
|---|---|---|---|
| Jordan Rivera | 3 | 3 / 3 | −1,240 € |
| Alex Thompson | 2 | 2 / 2 | 0 € |
| Casey Morgan | 2 | 1 / 2 | +310 € |
| Sam Chen | 1 | 1 / 1 | −85 € |
Illustrative figures from the demo group
One calendar per boat or for the whole fleet. Booking rules handle peak weeks and quotas; a cancelled week goes to the next owner on the waitlist.

Engine services, antifouling and rigging checks scheduled against hours and dates, with costs attached to the boat that caused them.

Berth, fuel, insurance and yard bills split by the group's rules. Every owner sees their own balance and pays it online or by bank transfer.

Each vessel keeps its own specs, documents, engine hours and tank levels. Owners of several boats see them side by side.



Kai's apps for iPhone, iPad, Android and Mac are where owners book a week, log engine hours and fuel at the end of a trip, and report anything that needs fixing. The next owner steps aboard knowing what they'll find.
iPhone · iPad · Android · Mac
Owners who sell shares in their own boats use Kai as the operating layer: every yacht runs as its own group of owners, and you keep the direct relationship with each of them. We'll set up one of your yachts on a trial.
The demo group holds a Beneteau Oceanis 46.1 and a Dufour 512 with a season of bookings, service records and costs already in it.