Download of Digistiller 1.1 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This free application works fine with Mac OS X 10.7 or later. The actual developer of this free software for Mac is Joakim Braun.
The application lies within Design & Photo Tools, more precisely Viewers & Editors. The program's installation file is generally known as digistiller_CurrentRelease.zip. The following version: 1.1 is the most frequently downloaded one by the program users. 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:
Digistiller for MacOSX is a utility for magazine and newspaper designers who do graphing in Adobe Illustrator. The program extracts weekly, monthly and yearly values from such data with a quick cut-paste operation. It can also perform simple percent, indexing and index-to-column calculations.
You may want to check out more Mac applications, such as QuickShow OSX or Stone Studio, which might be related to Digistiller.