And if you upgraded to OS X Lion, Quicken 2007 will no longer work on your Mac. There's Quicken 2007 for the Mac, but nothing serious after that. If you're on a Mac, though, you might think Intuit has abandoned you. If you have a grown-up financial life, with money in investment vehicles, Intuit has an up-to-date version of Quicken to help you keep track of it all-on Windows.