Pseudolocalizer 2.0 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This free software for Mac OS X was originally developed by Martin Nash. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. The program is included in Developer Tools.
From the developer:
Pseudocalizer is an application for developers who are serious about getting their apps ready for localization into multiple languages to take advantage of a broader, global exposure.
You drop your xcode project folder on the application window and it searches through the text of code files for NSLocalizedString declarations.
You may want to check out more software for Mac, such as wxFormBuilder, Jaxe or AlphaX, which might be related to Pseudolocalizer.