Download of uDig 2.0 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. Commonly, this program's installer has the following filename: udig-1.2.2.macosx.cocoa.x8.zip.
The software lies within Design & Photo Tools, more precisely Viewers & Editors. The bundle id for uDig for Mac is org.eclipse.eclipse. The actual developer of this free Mac application is uDig. 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 most popular versions of the tool are 3.7, 1.4 and 1.2.
From the developer:
uDig is an open source (LGPL) desktop application framework, built with Eclipse Rich Client (RCP) technology.
uDig can be used as a stand-alone application. uDig can be extended with RCP "plug-ins". uDig can be used as a plug-in in an existing RCP application.
The goal of uDig is to provide a complete Java solution for desktop GIS data access, editing, and viewing.
You may want to check out more Mac applications, such as PostGIS, which might be similar to uDig.