One wrong tap and Airbnb resells the week your family is staying.

Family, co-hosts and your housekeeper all see the same live calendar and can block a night in one tap. Each of them can release only their own dates, and you keep override on all of them.

Airbnb and Booking.com stop two guests taking one night. Neither stops your family reopening it. Datelock closes that gap across every channel you sync.

You get a real login on any browser: the control room, where every channel sits on one calendar, with the rules, the exceptions, and who did what.

Your family never signs in. They see what's free, take the dates they want, and add the house calendar to the one already on their phone, and you can revoke any link from your side.

Each member can hold up to 60 future nights, so nobody quietly takes the season. You get one notification when dates are taken, instead of five messages asking whether the week is free.

Your housekeeper opens a link with no account at all, sees the job and the checklist you wrote, and marks it ready. Change the checklist and every job that hasn't started picks up the new one.

You get the exception, not the routine: the one skipped item and its reason. They can also subscribe to a private cleaning calendar, or work from Telegram.