I used Linguee constantly as I was learning German. It does a great job of defining words as they are actually used and in allowing look-up of phrases that can be otherwise extremely difficult to define without simply having someone to ask. I still use it often for tough translations. The idea, the framework, and even the functionality are extremely helpful. The app is about the simplest, lowest resolution app you can imagine on an iProduct. Why display just a few lines of fat Apple IIe text on a retina display? For a reasonable display, you have to go to the website, which unfortunately is no more mobile-optimized. Poor execution.