Square - Square helps millions of sellers run their business-from secure credit card processing to point of sale solutions. Get paid faster with Square. Sign up today!

Grisbi - Accounting for everyone !

Loyverse - Loyverse free POS System for small stores, coffee shops, cafe. Easy to use point of sale, inventory management and customer loyalty program. Download app for Android or iOS.

Ledger-cli.org - Ledger is a powerful, double-entry accounting system that is accessed from the UNIX command-line.

Lightspeed - retail and restaurant point-of-sale, ecommerce, and omnichannel solution

Gnuaccounting - Gnuaccounting is a Free Java cross-platform accounting and bookkeeping application. Features