LINGOPAL 44 was £6.99 at the App Store, now free (with 69p in-app purchase). Obvious question: What the hell’s a LINGOPAL 44? It’s a 44-language translation app with offline support. Sacré bleu, as the Chinese say.
Compatibility: Requires iOS 7.1 or later. Compatible with iPhone, iPad, and iPod touch. This app is optimised for iPhone 5, iPhone 6, and iPhone 6 Plus.