The application lies within Design & Photo Tools, more precisely General.
From the developer:
DOT-PHOTOS allows you to share any of your iPhoto Albums with others. Simply open DOT-POD, select the images you'd like to share, and allow others to view those images using any Web browser, anywhere in the world. You can also select images from anywhere else on your Mac if you don't use iPhoto. It doesn't get any easier than this ...
You may want to check out more software for Mac, such as Mac Journal, Start FlowSpace Developer Client or Architekt 3D Gartendesigner, which might be similar to DOT-PHOTOS.