My daughter needed a French dictionary for school so I was looking for something we could use that was good and either free or low cost... This app fit the bill perfectly and is both fast and easy to use. The interface is attractive, intuitive and straightforward.
The only drawback is it gets its extensive data from online - so cant be used offline as far as I know.
Roam92 about Dictionnaire de français TLFi, v1.6.1