The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
From hailong qu:
Design To Go enables you to view, edit, and share AutoCAD drawings with anyone, anywhere using your mobile device. Annotate and revise drawings in the office, in the field, or in a meeting. Work on designs without an internet connection, and easily open DWG, DWF, and DXF files directly from email. Simplify design creation, review, and approval using powerful, built-in social design collaboration tools. .View Open 2D and 3D DWG drawings Open files directly from email on your device See all aspects of your DWG file, including external references, layers, and image underlays Use multi-touch zoom and pan to easily navigate large drawings Use your devices GPS to orient yourself within a drawingEdit Draw and edit shapes with accuracy using Snap Select, move, rotate, and scale objects Add and edit text annotations directly on your drawing; no need for paper mark-ups Validate distance measurements in the drawing while you are onsiteShare Share your designs with others directly from the mobile app Add comments and images and invite responses using the Design Feed Print remotely from your mobile device Plot your designs to PDF or DWF and share them via email