Ledger-cli.org - Ledger is a powerful, double-entry accounting system that is accessed from the UNIX command-line.
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Money Tracker Pro - K-Tech Systems - experts in the world of .Net
SAP ERP - SAP ERP is enterprise resource planning software developed by the German company SAP SE.
Grisbi - Accounting for everyone !
Odoo - An all-integrated business app suite to unleash your growth potential.