Sketch Mirror - Preview your iOS designs directly on your devices
SketchUp - 3D for Everyone
Flowkit - Sketch library for user flows/content maps/annotations
ArchiCAD - ArchiCAD 16 enables BIM modeling with a new green approach to planning. Create anything you need with ArchiCAD's flexible new features for design.
Artrage - A simple but lovely natural media painting and sketching program.
e-Builder - e-Builder is a construction program management solution that manages capital program cost, schedule, and documents.