I bought many dictionaries and translators but this ones on the top of my list of the favourites language apps. High number of words, built-in synonim base and 2 way translator (google and bing). The only one matter which makes me a bit sad is lack of higher amount of examples of words usage and lack of the complex forms - including more prepositions i.e, move, move on, move out ect. :)
Sorry for language but Im Pole.
MedysioPL about Dictionary Polish English, v7.2