Hot Dog Cash Tracker is designed to run on Windows computers, however you can run it on a Mac.
Mac users will need to use software that creates a virtual PC on your hard drive. I use Paralells for Mac to run Cash Tracker and it works great. Here is the link: http://www.parallels.com/
There are other ways to run Windows on a Mac. Read this article to learn more: http://www.howtogeek.com/187359/5-ways-to-run-windows-software-on-a-mac/