Workspaces overview
A workspace is an environment that allows you to manage your Bitrise projects and the team members working on the projects. You can create multiple workspaces, and you can be invited to workspaces by other Bitrise users.
To be able to add projects and run builds, you either need to be part of a workspace, or you have to be an outside contributor on an project's team.
You also need a workspace to have a paid subscription plan on Bitrise. Each of your workspaces can have a different subscription plan which determines how many credits your workspace's projects can use.