Both of you can add to it
Anyone in the list can add an item from wherever they are, and it appears for everyone straight away.
Sign in with Google or Apple. There is no form before the first list.
The same shared list, doing very different jobs for very different people.
The list on the fridge only works if you are standing at the fridge.
Anyone in the list can add an item from wherever they are, and it appears for everyone straight away.
"Which brand?" belongs on the milk. The answer stays there for next time.
The other person can see what is left without a phone call from aisle four.
A private task in the shared list, for the thing that is meant to be a surprise.