Stash - Version 1.0.7 What is Stash? Stash is a radically different approach to financial software that is based on a common sense approach to managing your money. Stash was designed to help you manage your money by allowing you to work through your own personal finances and tracking what you spend. Life is not routine so you need a finance tool that can help you manage the 'non-routine' parts of life. Stash does precisely that.