The IATA Legacy Applications, as well as their recent IATA Reader releases, are only for Windows. Mac / Apple / iOS versions are not available.
You can install the application on a Mac computer by using a Windows virtual machine (VM), hosted in a solution such as Parallels Desktop, VMWare Fusion or Oracle VirtualBox. Your IT department may be able to advise and assist on using such a solution.
IATA offers 'Mobile' versions of many publications. The 'Mobile' versions can be used in a browser and/or in an eReader app on all popular platforms (Windows, Mac, iOS and Android).
For more information, please visit: