iTranslate, the most popular translator tool on the App Store, now can also be on your Mac, putting 90+ languages at your fingertips. It is designed as a status bar app that is always just one click or keystroke away to help you solve any translation problem.
ABBYY Lingvo European quickly and accurately translates words and phrases without an Internet connection. 112 dictionaries for 7 languages (Russian, English, French, Spanish, German, Italian and Portuguese) are included in the application. All ABBYY Lingvo European dictionaries are licensed from leading international publishers.
Troga - Translate. Forget. Recall. Repeat.
Troga works with Yandex.Translator API that supports 93 different languages.
You can improve your vocabulary by translating words and phrases and setup reminder in the preferences to let Troga remind you some random translation from your translation history.
The PROMT Offline English Pack translates texts of any size from English into German, French, Spanish, Italian, Portuguese and Russian and vice versa. Special mode "PROMT Agent" let you easily translate texts in apps and browsers on your Mac.