The affordably priced Inventor LT 2015 is the cut-down version of the design software for creating models of all your mechanical engineering designs. You can also cost out and optimise designs.

Inventor LT 2015 makes for a targeted and impactful addition to the familiar Autodesk 3D environment. The great thing about Autodesk Inventor is that the focus is on how the design works, rather than on the modelling process. 

When you purchase a licence for Autodesk Inventor LT 2018, you also have the right to use the 2015 version. This is the only way, in the new licensing structure, to "buy" Inventor LT 2015 (further information on licensing).