The 1.4.1 version of Interpres for Mac was available to download on 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 free Mac application is Erik Andre Mendoza. We recommend checking the downloaded files with any free antivirus. Interpres for Mac lies within Education Tools, more precisely Languages.
From the developer:
Interpres is a GUI wrapper for the open-source Latin-English dictionary/translator/parser (and English-Latin dictionary) WORDS written and maintained by William Whitaker, which leverages Mac OS X's powerful technologies to deliver an improved user experience.
You may want to check out more software for Mac, such as OpenDict, iLingual or Keep Your Word, which might be similar to Interpres.