Areddo is a program of Arkey systems and thus Arkey systems is the copyright holder.
Use Areddo freely
Copy Areddo as many times as is useful to you
Send Areddo alongside the IFC files of your projects (note: this exception on the rule that distribution is prohibited does not apply to companies or organizations that develop and/or sell software)
Use Areddo on a project portal
Distribute Areddo
Modify Areddo