LedgerSMB is described as 'The LedgerSMB project provides small and mid-size businesses with open source accounting software: integrating invoicing, order processing, quotations and more (ERP). LedgerSMB aims to provide a strong (multi-currency accounting) basis to build your business on -- without vendor' and is a Budget Manager in the business & commerce category. There are more than 25 alternatives to LedgerSMB for a variety of platforms, including Web-based, Windows, Mac, Linux and iPhone apps. The best LedgerSMB alternative is GnuCash, which is both free and Open Source. Other great apps like LedgerSMB are Craftplan, Odoo, ERPNext and Dokos.