The 40.0 version of ReplicatorG for Mac is available as a free download on our website. The following version: 0.2 is the most frequently downloaded one by the program users. This application's bundle is identified as org.replicatorg.app. The application lies within System Tools, more precisely Device Assistants. This free Mac app is an intellectual property of Zach Smith. The program's installation file is commonly found as replicatorg-0025-mac.dmg.
From the developer:
This is the software that will drive your MakerBot Thing-O-Matic, CupCake CNC, RepRap machine, or generic CNC machine. You can give it a GCode or STL file to process, and it takes it from there. Its cross platform, easily installed, and is based on the familiar Arduino / Processing environments. ReplicatorG is used by thousands of MakerBot Operators, and has printed tens of thousands of objects and counting.
You may want to check out more software for Mac, such as ImTOO iPhone Transfer, goSerial or Line 6 Edit, which might be related to ReplicatorG.