Webster's New World College Dictionary and Roget's A-Z Thesaurus (iPhone/iPad) - The most useful and authoritative dictionary you can own, the Webster’s New World College Dictionary is selected by Associated Press, the Wall Street Journal, the New York Times, and other leading newspapers as their official dictionary of choice
Vox General Spanish Language Dictionary (iPhone/iPad) - What makes this dictionary different from any other is that the headword list and the language used for definitions reflect not only European Spanish, as is the case with the majority of other dictionaries, but also Latin American Spanish
PONS Comprehensive German Dictionary (iPhone/iPad) - This great German thesaurus provides a large variety of words, compound words, important phrases and constructions and is aimed at the needs of beginning and advanced German learners
Van Dale Dutch - German Dictionary (iPhone/iPad) - Van Dale Dutch-German & German-Dutch dictionary supports comprehensive translations and practical examples of usage offered in an easy to use and powerful application.
The dictionary database contains more than 67000 entries, especially selected for frequency of use
Oxford Russian Dictionary (iPhone/iPad) - Offering a comprehensive look at both languages, it includes over 185,000 words and phrases and 290,000 translations
Collins French-English Dictionary and Verbs - Carry a dependable French and English language reference in your pocket with the Collins Pro French-English Translation Dictionary
Vox Comprehensive Spanish Dictionary and Verbs - The most comprehensive Spanish dictionary available from Vox meets the most powerful dictionary interface on the iPhone and iPod touch in this application from Ultralingua.
Vox is one of the best sources for Spanish language data in the world, made even more useful with the functionality Ultralingua provides
Merriam-Webster's Spanish-English & English-Spanish Dictionary (iPhone/iPad) - Merriam-Webster's Spanish-English & English-Spanish dictionary is a bilingual, bidirectional guide to Spanish and American English with extensive coverage of Latin-American Spanish
Merriam-Webster's French-English & English-French Dictionary (iPhone/iPad) - Merriam-Webster's French-English & English-French dictionary is a bilingual, bidirectional guide to French and North American English with extensive coverage of Canadian French
VOX Spanish-English & English-Spanish Dictionary (iPhone/iPad) - VOX English-Spanish-English Dictionary is an accurate and complete dictionary for language learning. The dictionary contains about 68 000 words and expressions with abundant usage examples, notes of culture, idiomatic expressions, phrasal verbs and technical terms