Moneychanger is a simple client GUI built on top of Open Transactions, a financial crypto library. Moneychanger can be used to create pseudonyms, issue currencies, open accounts, withdraw and deposit cash (untraceable digital cash), write and deposit cheques, trade on markets, and much, much more.
phpMoneyBooks is a PHP/MySQL program that aims to be a Web-based QuickBooks replacement. It can manage bank accounts and check registries; manage customers and create statement charges; print statements to bill customers; and display profit and loss reports. The design is modular so that features can be added by any PHP/MySQL developer. With new modules, you can direct the user to a URL. Clients can log in and check their own bills and pay online, create memorized billing cycles with Auto Billing (good for recurring billing), and more.