SDL TRADOS is not available for Mac but there are plenty of alternatives that runs on macOS with similar functionality. The best Mac alternative is OmegaT, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to SDL TRADOS and 15 are available for Mac so hopefully you can find a suitable replacement. Other interesting Mac alternatives to SDL TRADOS are Zanata (Free, Open Source), OneSky (Paid), Wordfast (Paid) and LF Aligner (Free, Open Source).
Xliffie is designed for developers in mind, with functions like checking printf-formatted string (make sure your %@ is not a %d in the translated string), search with regex, Google / Bing translated, etc.
tlTerm is an off-the-shelf software application for compiling terminology lists (termbase editor) that supports any language. Standalone or multi-user. Integrated corpus query module. Includes functionality for publishing to Web or exporting to Word. Highly customizable.
LocDirect is a game localization CMS designed to simplify collaboration between dev, translator & QA teams. Translate PC, mobile, and console games during development, cut the time-to-market period & reduce loc costs.
Anaphraseus is a CAT (Computer Aided Translation) tool, OpenOffice.org/LibreOffice.org macro set similar to famous Wordfast. It works with the Wordfast Translation Memory format (*.TXT), and supports text segmentation.