From Aardy Labs:
Prosperity is a software tool to allow you to track your personal finances. Its primary purpose is to help you create a budget and stick to it. It enables you to import your transactions which you've downloaded from your bank's website in OFX or QFX format, and then tag those transactions with categories that describe the particular spending. You may also attach memos to transactions to help you recall what they were for. You can set monthly targets for each of your tags and quickly check at any time to see how closely you're meeting your targets. We hope you enjoy it and find it useful.