You're looking for information on AutoRebar for Autodesk AutoCAD 2015-2025, specifically a free version or a better alternative. Here's what I found:

Would you like more information on any of these alternatives or tools?

AutoRebar is a software add-on for Autodesk AutoCAD that automates the process of creating and detailing rebar (reinforcing steel bars) in concrete structures. It's designed to save time and increase productivity for architects, engineers, and drafters working on construction projects.

While I couldn't find a free version of AutoRebar, there are alternative solutions and add-ons available that can help with rebar detailing in AutoCAD. If you're looking for a more powerful solution, you might consider specialized software or more comprehensive Autodesk tools.