Flexify 2.6 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. Flexify for Mac belongs to Design & Photo Tools.
From the developer:
Flexify is a Photoshop plug-in that allows you to bend spherical panoramas into vertiginous new shapes.
You may want to check out more software for Mac, such as Umajin, MultiTouchFlickrViewer or Photoshop 101, which might be related to Flexify.