StitcherUnlimited 6.0 for Mac can be downloaded from our website for free. The actual developer of this software for Mac is Autodesk Inc. The application relates to Design & Photo Tools.
From the developer:
Autodesk Stitcher Unlimited photo stitching software offers professionals and enthusiasts easy-to-use tools for creating high-quality panoramas. From dramatic backdrops for film and game productions, to stunning images for artistic display, Autodesk Stitcher Unlimited panorama software can automatically assemble a wide variety of images.
You may want to check out more Mac applications, such as 3D Image Commander, UnCoverIt or TurboCAD Mac Designer, which might be related to StitcherUnlimited.