F1000 1.0 for Mac can be downloaded from our website for free. The actual developer of this free Mac application is Faculty of 1000 Ltd. The application belongs to Productivity Tools.
From the developer:
The F1000 Workspace desktop app is a lightweight app that allows you to upload PDFs to your list of references and project folders. It also allows you to set up a Watch Folder on your machine to automatically upload any PDFs you save there to your list of references, which you can later access by logging in at f1000.com/work on any web browser.
You may want to check out more software for Mac, such as 3dissue, Blurb Tally or Pads X, which might be related to F1000.