Worldictionary is a cool app and one I wish I had when I was in school! This app from Penpower Technology Ltd will help you translate words on the fly.

To use the app, simply point the camera on the text you wish to translate, with the crosshairs on the specific word and the app will then translate it for you. Very slick. The app is very simple to use and setup.  On the main screen you can choose the languages you wish to use. After the app translates the word, you can have it speak it to you.

You can choose from three translation engines (Google, Bing, and Basic Vocabulary) and there is an option to purchase 2 other Chinese dictionaries.  There is over a dozen different languages to choose from.

When you find a word, you can click on it and find out more about it and then search it online at Google, YouTube or Wikipedia.  You can also bookmark words or save an image of the document with the word.

I think this would be a great app to have when traveling or for a student who need a quick lookup. The app simply works and is a great tool. Not sure what else I can say. I definitely recommend this translator.