PiP for Mac - Always on top window preview similar to the popular windows only OnTopReplica
Bulk Image Downloader - With Bulk Image Downloader you can download full sized images from almost any web gallery.
Helium - Helium lets you accept payments by credit card for anything you want to sell online.
Vov Picture Downloader - Download pictures from websites.
PiPifier - PiPifier is a macOS 10.
WFDownloader App - A free bulk image downloader application that also serves as a multi-purpose bulk downloader for your PC.