OrthoGraph Architect lets you create floor-plans in electronic format on-site. Using this app you can create precise floor-plans for further use in any popular desktop CAD application like AutoCAD, ArchiCAD or SketchUp. OrthoGraph is a unique iPad application maintaining a 3D BIM building model on-site. Area and surface reports help you make calculations direct from the measured drawing, and an instant 3D walkthrough lets you plan whether your furniture fits the place you imagined it. All this direct on the iPad screen on-site.