All QuickBooks Desktop (QBDT) versions have a class tracking feature including QuickBooks Desktop Pro, eeegadidaho.
However, if you're trying to run a report, like Balance Sheet by Class, this is unavailable in QuickBooks Pro.
You can pull up the Balance Sheet Detail report. It will show you a class column. Here's how:
You can check out this article for more information on how to customize reports in QBDT: Customize company and financial reports.
I'm also adding these articles to learn more about how class tracking works in QBDT.
Get back to me by commenting below if you have additional concerns about the class tracking in QBDT. I'll be right here to provide the information that you need.