Cyclos 3 OPEN SOURCE PAYMENT SOFTWARE
Cyclos 3 was our flagship software from 2005 to 2013. Cyclos 3 is published open source and is downloaded more then 150.000 times.
Be aware Cyclos 3 is not being maintained any more. We do not advise using Cyclos 3 for any mission critical software, since the codebase has not been maintained. But please feel free to look at the source and use it to your needs.