Rabio is an open source project free to download for everyone.
Currently, there are two editions of Rabio, free open-source and Pro.
The open-source version of Rabio is free and anybody can download, install, and operate it for free.
You can visit the Rabio project page on SOURCEFORGE
Rabio comes with a GNU GENERAL PUBLIC LICENSE
The Pro version of Rabio is equipped with a set of extra reports and views.
See more for Rabio Pro here.