almost perfect

the best interface among several iOS dictionaries I have. It seems to contain everything from the paper OALD (I checked for a dozen words). there are some really minor issues with formatting. In general thos is the best dictionary program among several I tried (I didnt try the big expensive Oxford dictionary). OALD itself is the best dictionary for foreighners anyway.
So if you are a non native speaker as I am, this is the best app for you.

groucho72 about DioDict4 English Advanced Dict