No, the application is not compatible with Mac OS X. I have tried to find the application on their website, but it displays Chinese language. Translated the website using Google Translate, and the MP3 Tweak doesn't appear which means this is a discontinued product without any possibility to download it.
Use the database of Mac Informer to look for other MP3 tools: http://macdownload.informer.com/search/mp3+tweak
