Linguo is a multilingual translator developed by Edovia, Inc. located in the multilingual city of Montreal. Linguo is primarily an online translator, but it can be accessed offline with assistance of a database that caches results on the device. Linguo first searches for results locally, before searching online for a translation.
Edovia have crammed a lot of features into Linguo, including 400 audio clips, and the ability to send results by email or save them for later lookup. The internal database is seeded with over 385,000 entries. Translation is offered across 25 languages:
Arabic, Bulgarian, Chinese (traditional and simplified), Croatian, Czech, Danish, Dutch, English, Finnish, French, German, Greek, Hindi, Italian, Japanese (Romaji and Kanji), Korean, Norwegian, Polish, Portuguese, Romanian, Russian, Spanish, Swedish.
Linguo costs $2.99 and is available in the iTunes Store. A free version, Linguo Lite, is also available, and it lacks only the offline database features of the pay version.