IApproach is a Windows program. There is no Mac version available, however it is still possible to run IApproach on the Mac.
1). You can upgrade to Desktop Delivery instead of DVDs
How Desktop Delivery works for Macs, PCs and Tablets:
You’ll download and install one application from anywhere with an internet connection. We will provide you with login credentials. Once signed-in, you will be running the same software that we deliver on DVD
2). Other Tdata customers have used Parallels software to run their Windows programs on Macs. Try these links for more information:
Here is a link to some information and quick videos that show you how it works.