PixelStyle 3.6.5 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. This Mac app was originally designed by effectmatrix. PixelStyle for Mac belongs to Design & Photo Tools. 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.
From the developer:
PixelStyle Photo Editor for Mac is a Photo Editor and Graphic Design App, providing high-quality photo processing tools to edit photos, enhance and touch up photos on Mac OS X. Choose from 100+ built-in painting and drawing brushes, vector illustration tools to bring your ideas and creative designs to life. PixelStyle Photo Editor for Mac has many requisite features you'll need to get your photos looking better, plus lots of other stuff inside.
You may want to check out more Mac applications, such as 3D Image Commander, UnCoverIt or Ashampoo Cover Studio 2 for Mac, which might be related to PixelStyle.