Download of 3dissue 4.0 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.
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. The following version: 4.0 is the most frequently downloaded one by the program users. The application lies within Productivity Tools, more precisely Office Tools. This software for Mac OS X is an intellectual property of Trinity Innovations 2010.
From the developer:
3D Issue is available for both PC and Mac, and can output digital editions for online, offline and iPad. A 3D Issue license lasts a lifetime. Once purchased you can use 3D Issue to digitize any number of past, present or future publications your company wholly owns. Forever. The software is incredibly intuitive and user friendly enabling you to create your own digital editions in minutes.
You may want to check out more Mac applications, such as PitStop Extreme, FileOpenInstaller or Blurb Tally, which might be related to 3dissue.