3D software occupies a specific niche where the ultimate in technology intersects with the ultimate in human creativity. It's Threekit's deep respect for the creators—the 3D artists—that helps to differentiate it from other offerings. Read about this legacy, as well as 3 other characteristics that make Threekit unique.
Should you use the STEP 3D file format? Like with all 3D file formats, it depends on what you are trying to do. Here, I will talk about the strengths and weaknesses of the STEP file format so you can decide if it is right the task at hand.