Autodesk does not offer an official "portable" version

While "portable" versions of large-scale software like Autodesk Inventor 2015 are often found on third-party sites, of Inventor 2015. Using unofficial portable versions carries significant security risks and legal implications. Official Access and Availability

. Below is a summary of the technical specifications and core features for that release. Technical Overview & Requirements

4. Fusion 360 (free for personal use)

– Cloud-based CAD with Inventor-like modeling, runs on limited hardware.

Freeform Modeling:

Provides an alternate approach to organic shape creation using T-Splines, allowing designers to manipulate surfaces by pulling and pushing points.