Free and Open Source Invoicing, Expenses & Time-Tracking
Open Source Integrated Hospital Information Management System
Open Source Openbravo POS convert to Commercial Retail ERP and POS
Accounting system for smaller companies written in GnuCobol.
A basic PHP/MySQL/HTML Billing APP. Meant for developers learning.
Small Business Appliance
Free & Open Source Invoice App for Freelancers & Small Businesses
Imagic Solution Easy to Use Windows Based Weighbridge Software
Membership management software
Tool to manage canteen, nursery and events registrations of a school.
Invoice and office utilities program for customer managment
Mutasyon is a script can add customer, products, inventory or invoice
Intuitive quote, delivery note, invoice, payments management app
Free web-based invoicing primarily for Finnish companies