If you want to find software with similar capabilities, we can look at currently on the market.
The death of Sketchbook Designer 2014 left a hole that has never truly been filled. Modern alternatives like (from Serif) come close—offering vector/raster hybrid workflows—but they lack the raw, immediate drawing feel and the technical CAD export. Autodesk Sketchbook Designer 2014
So, why choose Autodesk Sketchbook Designer 2014 over other digital art software? Here are some benefits that set it apart: If you want to find software with similar