An extensive English to French, and French to English dictionary featuring a dependable word database of 240,000 translation pairs. It is one of the most popular dictionaries in the French App Store with more than 200,000 users.
iDictionnaire is rich in idioms, phrases and technical terms. The clear user interface in both English and French with "search-as-you-type" suggestions and a streamlined presentation of results makes this a very easy and useful app. Also it is completely self-contained, no internet connection or additional in-app purchases required.
Also available on the Mac App Store.
User reviews in the French App Store:
Breizher: I can delete all my other dictionaries, this one is much more comprehensive after several tests and on top of that very convenient.
Adrien Roussel: Rapid, efficient and very convenient.
GrotesK54: I will immediately replace all other dictionaries on my iPhone, thanks, perfect!
Quentinouz: Allways the right translation, and expressions that often pose a challenge to other dictionaries.