WordWeb Dictionary brings a wealth of definitions directly to your iPhone. For those who love words or just want to make sure they're using the right one, this is a nice addition to your apps, but overall we felt it didn't beat Apple's native application.
WordWeb Dictionary has a well-designed interface, but its settings were a bit hard to find. We had to search a bit to find them hidden under the share button, but this was the only issue we noted during our testing. The settings tab proved useful, though, allowing you to enable and disable multiple filters to refine searches. Using the app proved much easier than locating the options. You just need to start typing and the app will display a list of words that match the letters you've typed. The definition for any word will pop up in another window. You can also see synonyms and the app will try to help you find a word if you're not sure how it's spelled, a great feature for those who are spelling-challenged. We were also pleased that this free app didn't come loaded with advertising -- as promised, it's ad free. However, despite how well it performed, it didn't add any outstanding features or functionality that make it better than Apple's native dictionary app.
The bottom line is that we liked the app and it worked well, but we couldn't find enough reason to switch from our built-in dictionary.