A private planner for one family.
Realmuto Home keeps one family's plans, childcare and ideas in one place. It is not a public service. There is nothing to sign up for, and only the family and the people they invite use it.
How it uses Google Calendar. With each account owner's permission, Realmuto Home reads Google Calendar to show upcoming plans in one list and to work out whether childcare is covered.
It only reads. It never creates, changes or deletes calendar events, and it never shares them.