Uizard’s 'Modes' are the main options that you see when creating a project.

Build mode
In ‘Build’ mode, you can upload wireframes, create user interfaces from empty screens, and design.
Interact mode
In ‘Interact’ mode, you can link components and screens together.
Comment mode
In ‘Comment’ mode, you can give feedback to your teammates’ work and go through any comments left on your work.