There are many alternatives to VisualSFM for Mac and since it's discontinued a lot of people are looking for a replacement. The best Mac alternative is Regard3D, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 10 alternatives to VisualSFM and six of them are available for Mac so hopefully you can find a suitable replacement. Other interesting Mac alternatives to VisualSFM are Agisoft Metashape (Paid), openMVG (Free, Open Source), Pix4Dmapper (Freemium) and COLMAP (Free, Open Source).
Agisoft Metashape is a stand-alone software product that performs photogrammetric processing of digital images and generates 3D spatial data to be used in GIS applications, cultural heritage documentation, and visual effects production as well as for indirect measurements of...
COLMAP is a general-purpose Structure-from-Motion pipeline with a graphical and command-line interface. It offers a wide range of features for reconstruction of ordered and unordered image collections.
MicMac is a free open-source (Cecill-B licence) photogrammetric suite that can be used in a variety of 3D reconstruction scenarios. In aims mainly at professionnal or academic users but constant efforts are made to make it more accessible to the general public.