uniCenta oPOS is a completely Free Open Source POS
Free to Download : Free to Use : Free to Own
uniCenta oPOS is a proven, reliable Touchscreen Point Of Sale application that meets the needs of a wide-range of businesses. It's a great POS for for all kinds of operators from Amusement Parks and Bars through to Yacht Chandlers and Zoo shops!
Highly configurable and reliable uniCenta oPOS runs on Windows, Linux and Mac OSX and can scale from a single PC through to tens of POS terminals spread across different locations.
uniCenta oPOS started life as a branch of the amazing, but now defunct, Openbravo POS open source project back in 2010. Since then we've extened it, improved it and added a load more functionality.