This suite from Autodesk combines Revit LT and AutoCAD LT. The affordably priced LT editions of the main BIM software and the most popular CAD drafting program will help you do your work efficiently. 

Not only will this help you increase your productivity, for example by using the new added ribbon galleries, but the 2015 version of AutoCAD also lets you share your files with colleagues and customers more quickly and easily. Combine the power of these two top programs to create and share your designs with stakeholders and other users of the software on the basis of the Autodesk Revit or AutoCAD platforms.

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