Kinsumo
Does the heavy lifting for your family.
Say what is happening, once. Kinsumo works out the events, tasks, list items and reminders it implies, shows you exactly what it understood, and applies it for the whole household only after you confirm.
People
Everyone the household plans around, with or without a login.
Events
One shared calendar, including the things that repeat.
Tasks
Who is doing it, and by when.
Lists
Shopping and packing, ticked off by whoever is there.
Reminders
The nudge the night before, not the morning of.
Nothing is ever written without your say-so. Kinsumo proposes; you confirm.