Not like regular 3D CAD modelling (aka forward engineering), reverse engineering requires a different workflow. Check these features that you might not get from your caliper.
QUICKSURFACE provides two versions: Pro & Lite.
The Pro version is equipped with all reverse engineering tools for both industrial products and organic shapes. Lite version inherits the some crucial features from the Pro version and aims for extracting sketches and free form surfaces quickly for other CAD programs. See the detailed comparison HERE.