Bitcoin is a peer-to-peer electronic cash system that is completely decentralized, without the need for a central server or trusted parties. Users hold the crypto keys to their own money and transact directly with each other, with the help of a P2P network to check for double-spending.
AqFinance is the successor to QBankManager. It is a graphical accounting application based on double-entry accounting. The GUI uses the FOX toolkit. The package contains AqFinance (the GUI application), AqFinance-CLI (a command line tool to manipulate and export the AqFinance database), and AqBanking-CLI (a command line tool for online banking tasks). It supports all online banking protocols provided by AqBanking (currently HBCI and OFX DirectConnect). A version supporting EBICS (a German online banking protocol) is also available. AqFinance contains the latest versions of AqBanking, Gwenhywfar, and Libchipcard.
The ea-Geier is a tool that handles accounting on a cash basis for Austrian companies (Buchhaltung zur Einnahmen-Ausgaben-Rechnung). With modular accounts code and a multi-lingual design, it is easily adjustable for other countries. It allows you to book and administrate your incomes and expenditures, manage assets (depreciation for wear and tear), your purchased goods intended for resale, and travel expenses.
BLAX! is a point-of-sale application that helps the salesman to manage sales and intakes. It focuses on the main aspects of a small store: printing a bill, displaying something on an LCD, handling bar codes, and calculating inventory. It features sound feedback, color sets, log files, and many other features.
GFP is a Java/Swing personal finance manager that is translated to 10 languages and is being translated to more. It supports credit card, checking, and savings accounts. It has an intuitive GUI that makes it easy to learn and use. It has a budget feature and many reports to help on finance management. After some months of usage, GFP begins to try to predict your finance behavior for the configured type of transactions.
TimeTrex is a complete Web-based payroll and time management suite that offers employee scheduling, time and attendance (timeclock, timesheet/timecard), job costing, invoicing, and payroll in a single package. Employees can use Web browsers or timeclocks to track their time and attendance, check their own timesheet for missed punches, and respond to flagged timesheet errors. Payroll administrators can quickly generate paystubs and process payroll based off timesheet information or export timesheet data to other applications.
libgeier is a library to send gathered tax declarations data to the German inland revenue offices (using the Elster2/Coala-approach). It is capable of validating, encrypting, digitally signing, and sending the data, which has to be supplied as an XML tree. It can generate transmission protocols for you. A small command line client is included.