Luca is a full-featured, fully-functional, accrual-based accounting system that runs on OS X. It has the ability to handle real-time double-entry postings and multiple currencies, yet we try to make it very easy to use, so that it will require minimal accounting knowledge to operate. It is designed for small and medium-sized enterprises.
With features like: unlimited levels for Chart of Accounts; easy to drill down to any level of detail; tracks Sales, Purchases, Receivables, Payables; allows partial payment of invoices; allows off-setting between invoices of same account; Billing, Settlement, & Base Currencies can all be different; calculates Forex Gain/Loss; Statement of Accounts and Aging Analysis can be generated at any time; and more.