Both parents see the same thing
One calendar, one set of records, one ledger. There's nothing to relay, forward, or remember to mention, and no version of events to argue about.
Changes on the other parent's time are requests
Not announcements. You propose, they answer, and the calendar updates only when you both agree. Approvals and declines are recorded with the date.
Neutral by design
Ellsby shows dates, times, places, and amounts. It doesn't take sides, score anyone, or add commentary. Both of you get the same calm interface.
Records, when you want them
What each parent entered, and when, is kept as a clear history. You can subscribe to your calendar or ask for an export at any time. It's your family's information.
Nothing forced
Nobody is made to use Ellsby, and nobody is locked in. It's useful on your own from the first day, your co-parent joins when they want to, and your data leaves with you if you go.