Our website provides a free download of Iconeer 2.0.2 for Mac. The software is included in Design & Photo Tools. The actual developer of this Mac application is Ancodia Software.
From the developer:
Iconeer is powerful, full featured mac icon creator for Mac OS X icons.
You may want to check out more Mac applications, such as Icon Factory, Icon Creator - ICNS and IconSet Composer or iOS Icons, which might be similar to Iconeer.