2. Word Lens

On iTunes: itunes.apple.com
Price: Free
Word Lens makes translating things SO much easier and allows you to see the world in your language. You can translate printed words using your phone camera, in real time! How incredible is that?! The app offers in-app purchases for different language packs you might need/want, like "English-Russian," "English-Portuguese," and so many more. The cool thing about the app is that no network is required - you'll get results immediately, no matter where you are in the world.