Sharing a plan

In Settings, Sharing takes someone’s email and whether They can Edit the plan or Only view it, then Share the plan. We email them to say so. When they sign in with that address (a new free account if they have none), the plan is in the list under its name at the top, beside their own.

What each person can do in it is set by their own account: on Free, Plus features stay locked, even in a Plus owner’s plan.

The owner sees everyone on the plan, changes what each can do, takes anyone off or withdraws an invitation. Anyone else can leave. An account still owns one plan of its own; someone with only shared plans can start theirs from the list.