Autodesk in 2017 . While the original Mac App Store download is no longer available, users often seek it out for its simple, mid-ground workflow that bridges the gap between basic and advanced modeling. The 123D Design "Story" on Mac

; however, use these with caution as they are not vetted by Autodesk and could pose security risks. Recommended Next Steps Check Fusion 360 : If you were using 123D Design for modeling, Fusion 360