In the projectIn the project
The working model, documents, research, and comments — the team's full working space.
Collaboration
The team works together. The client sees what you send.
Model, documents, research, comments and the team all in one project. Clients get a curated link, not the workspace.
One project, two sides.
In the project
What the client seesWhat the client sees
A curated link with only the scenes, renders, and notes worth showing. Not the workspace.
Keep working how you work.
Bring in the model from Revit, ArchiCAD, SketchUp, or IFC, and the whole team designs around that same file. No exports floating around, no versions to reconcile. Your CAD stays the source; Harth is where everyone meets around it.
Multiplayer
Design in the same model at the same time. Live cursors, presence, and spotlight and follow to jump into someone's viewport.
Comments over the 3D
Threaded comments pinned to the thing they're about, not buried in an email chain.
Everything in one place
Documents, research, notes, photos, renders, and scenes attached to the project.
Boards
Collect only the scenes, renders, and notes worth showing. Send a link, not the workspace.
Collaboration features
Design in the same model at the same time. Live cursors, presence, and spotlight and follow to jump into someone's viewport.
The architect decides what's shown, and when.
The working model, the dead ends, and the options that aren't ready stay with the team. What goes on a board is what you chose to put there.
Inside that frame, clients participate. They open it, walk through it, and react early, while ideas are still cheap to change.
For most clients this is a once-in-a-lifetime build. Making it feel like one means fewer changes late and fewer regrets in concrete.
What a client can do
Open a web link.
No account, no install. Curated by you and the project team.
Walk through it
Full screen views, isolated 3D scenes with simple navigation, recorded walkthroughs and more.
React & feedback
Markup and notes land on the work, not in a reply-all.
Frequently asked questions
No. A board opens from a link.
