This document compares Instagram, Facebook, and VSCO on key features such as price, popularity, storage size limits, photo editing capabilities, privacy settings, whether ads or required account logins are present, and if in-app camera, direct sharing, tagging others, and are supported. Instagram and Facebook are both free, very popular, allow basic photo editing, offer public or private accounts, and support all listed sharing features, while VSCO has a free basic version and paid subscription, is popular, and also enables photo editing and sharing options but does not show ads.