Open Transactions is a solid, easy-to-use, financial crypto and digital cash library, including an API, server, and test client. It features anonymous numbered accounts, untraceable digital cash, triple-signed receipts, basket currencies, and signed XML contracts. It also supports cheques, invoices, payment plans, markets with trades, and other instruments. It uses OpenSSL and Lucre blinded tokens.
OpenEMR is a medical practice management, electronic medical records, prescription writing, and medical billing application. It is a replacement for medical applications such as Medical Manager, Health Pro, and Misys. It features support for EDI billing to clearing houses such as MedAvant and ZirMED using ANSI X12. Major features include electronic billing (includes Medicare), document management, integrated practice management, e-prescribing, prescriptions by printed script, fax, or email, insurance tracking, multilanguage support, easy customization, easy Windows installation, integration with an external general accounting program (SQL-Ledger), and a built-in scheduler. It is multi-facility capable, voice recognition ready (on Windows), and Web based (secure access with SSL certificates).
PayPal IPN Agent is a PHP class for handling backend processing of PayPal Instant Payment Notifications. It correctly validates the IPN itself and the PayPal SSL Certificate, and has hooks for checking prices and taking actions on a "Completed" payment. It was designed to work with any kind of shopping cart or payment tracking system by storing all IPN transactions in a simple sharable DB layout for later examination.
PhpCompta is an accounting application. It is Web based and follows Belgian and French accountancy systems, but can be adapted to others. This application is able to handle the accounting for several small and medium-sized companies, and can create invoices or reports with OASIS or RTF templates. It can also manage analytic accountancy and follow-up of customers and suppliers. A plugin system is provided.
PortfolioTracker allows you to track and manage your stock portfolio of Euronext shares in real time (with a 15 second delay). You can use it to assess your stock positions (price, daychange, gain, gain%, value, weight%) with one command. Portfolio changes are easily maintained in a text file. PortfolioTracker is a twin project of QuotesViewer (http://quotesviewer.sourceforge.net).
qPos is Point of Sale (POS) and inventory management software. The project is developed using the Qt library and requires PostgreSQL. It is currently in an alpha stage, but is functional. A nice interface, access based on user profiles, and native multilingual support are some of the goals.