A Guest is a person who has access to the one project to which you’ve directly invited her. You can invite guests to collaborate on projects for free.
A Team Member is someone who's going to use Airstory with you or within your organization relatively regularly. When you add team members to your Airstory account, you can access each other’s projects and the cards within them – but no one can see a project until they've been explicitly added to that project.
We hope you enjoy using Airstory! 👍