Roles decide who can do what
The owner edits, invites and removes members. An editor edits and comments, a commenter views and leaves remarks, a viewer only looks. A client who should have a say but must not move a wall by accident is a commenter.
Roles can be changed at any time. A removed member loses access immediately, and everything they did stays in the project.
Two people in two rooms do not collide
When you move a sofa, colleagues receive only that sofa, not the whole apartment. So one person lays out the kitchen while another changes the bedroom floor, and neither overwrites the other. If two people move the same item, it ends up wherever it was put last.
Colleagues' cursors glide smoothly. Click a member in the list and the camera goes to where they are working; if they are looking at the plan, the editor switches to 2D.
Undo only takes back your own steps
While you were choosing curtains, a colleague moved the wardrobe. You press Ctrl+Z ten times, your steps are undone, and the wardrobe stays where they put it.
If the connection drops, edits are kept in the browser and sent once it is back. Next to the members you can see whether it says Saved or No connection.
A remark sits where it belongs
Clicking the scene places a comment, so nobody has to guess which corner it is about. Each pin has a thread with replies. Once it is settled, mark it resolved and hide it, or reopen it if the fix didn't work. The list of remarks lives on the apartment itself, with no separate document of numbered screenshots.
Collaborators need no paid plan
Owners on the Designer or Designer+ plan can invite collaborators. The people they invite work in the project on any plan, the free one included. Accepting an invite only requires signing in.