CADViewer
7.6#3 in cad viewer softwareFrom $2,444 a yearAndroidiOSWebAPI
VisitCADViewer suits developers integrating CAD viewing and markup into browser-based workflows. Its listed use cases also include space management, maintenance, and real estate operations.
ShareCAD suits solo creators, freelancers, and teams in architecture, engineering, construction, manufacturing, or surveying who need to view and share technical files. It is not suited to users who need to create or edit those files in the product.