Free and Open Source Invoicing, Expenses & Time-Tracking
Open Source Metering and Usage Based Billing API
Accounting system for smaller companies written in GnuCobol.
Open Source Openbravo POS convert to Commercial Retail ERP and POS
Small Business Appliance
Imagic Solution Easy to Use Windows Based Weighbridge Software
Membership management software
Desktop and mobile solution for invoicing
A super simple way to create & send invoices, receive payments online
Baraza Business Management System, a product of Openbaraza
The Open Source Invoice Management Software
Carting Management System
Programa - web-php para gestionar facturas en base de datos mysql.