CashFlowTool currently supports QuickBooks Desktop (Pro, Premier, Enterprise. 2012 - current). Simply select QuickBooks Desktop as your accounting package for CashFlowTool and you will be prompted to install a small add-on called Finagraph Connect which quickly syncs your QuickBooks Desktop data with CashFlowTool.
Here are 2 resources to learn more:
1. Watch the video: Getting started with QuickBooks Desktop:
2. See the Step-by-step guide on connecting CashFlowTool with QuickBooks Desktop: