You could have downloaded Repgen 2.2 for Mac from our application library for free. The program belongs to Business Tools. This Mac application was originally developed by com Solutions Inc.
From the developer:
Repgen generates the scripts required to setup and monitor an Oracle database Advanced Replication installation. The implementation of primary key, replication triggers and multiple conflict resolution methods is included. Licensed customers receive source code and the ability to make site-specific customization of the generated files via an external module.
You may want to check out more software for Mac, such as Dynadot Account Management Client, which might be similar to Repgen.