Sharing a Meeting With Someone Who Doesn't Have an Account
You can share an agenda, notes, or recording with anyone by email — they don't need a Groupthink account first.
When you share with an address that isn't already on Groupthink (through the Share button, an agenda item's assignee field, or automatically as a calendar attendee), we create a free account for them, add them to the agenda as a Viewer, and email them an invitation with a link. No password, no paid plan. They open it by signing in — see How to View Meeting Notes Shared With You.
You can pick a different role when you share: Viewer (read-only, the default), Participant (can edit), or Host (can edit and manage sharing). More in Managing Agenda Permissions.
Shared agendas attached to a calendar event reach everyone on the invite automatically, accounts or not. Private agendas never do.