Download of nibTranslate 1.2 for Mac was available from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The actual developer of this software for Mac is Iwascoding. The software lies within Developer Tools, more precisely IDE. We recommend checking the downloaded files with any free antivirus.
From the developer:
nibTranslate is a little Cooca application that provides a graphical front end to nibtool, Apples command line application for nib manipulation. It allows translation and generation of multiple nib files using a single translation dictionary for each language. nibTranslate is based on mmalcom Crawfords iTranslate application.
For an introduction on the whole topic, please read mmalcoms article "Internationalizing Cocoa applications" on www.
You may want to check out more software for Mac, such as HexDecBin, wxFormBuilder or TopCoder UML Tool, which might be related to nibTranslate.