Wikiweb takes the basic stuff on Wikipedia and makes it look better – much better. This app has all of the joys (and, of course, possible inaccuracies) that Wikipedia has to offer, but in a re-formatted, phone-friendly interface so that you can let your curiosity run wild browsing through different entries. The best part of the app – and perhaps the only real reason you should pay $4.99 for it – is the infographic feature, which creates a web of how one entry is related to the next, an interesting and thought-provoking take on word association.
Compatibility: iPad and iPhone
Cost: $4.99