What are the features involved with the AutoCAD WS?

- AutoCAD is a platform that provides Mobile Apps (iOS) to be created by providing certain options for view, edit and share. 

- The user can easily share the applications wherever they go on fly and it makes creating application less time consuming. 

- The applications can be downloaded and installed from many other places that require licensing for the mobile applications. 

- The users can save the file in whichever way they want and the application can run on any platform. 

- AutoCAD applications provide a way to let the user share information on cloud and use the technology to enhance more features.

AutoCAD WS is a mobile app that enables registered users to view, edit or share AutoCAD files through mobile or using web.

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I endorse Mr. Hrvoje Kancelak  answer

 AutoCAD WS or AutoCAD 360 is an account-based mobile and web application enabling registered users to view, edit, and share AutoCAD files via mobile device and web using a limited AutoCAD feature set and using cloud-stored drawing files. 

It includes new features such as a "Smart Pen" mode and linking to third-party cloud-based storage such as Dropbox. Having evolved from Flash-based software, AutoCAD 360 uses HTML5 browser technology available in newer browsers including Firefox and Google Chrome.

AutoCAD WS began with a version for the iPhone and subsequently expanded to include versions for the iPod Touch, iPad, Android phones, and Android tablets.

 Intialy It was supported with drawing of lines, circles, and other shapes; creation of text and comment boxes; and management of color, layer, and measurements — in both landscape and portrait modes.

In 2011, Autodesk announced plans to migrate the majority of its software to "the cloud", starting with the AutoCAD WS mobile application.

the name AutoCAD WS had no definitive meaning, and was interpreted variously as Autodesk Web Service, White Sheet or Work Space.