Google Translate is helping make the world smaller with instant camera and real-time conversation translations.

Instant translations
We have taken camera translations to the next level and let you instantly translate text using your camera in 27 languages—so it’s way easier to navigate street signs in the Italian countryside or decide what to order off a Barcelona menu. While using the Translate app, just point your camera at a sign or text and you’ll see the translated text overlaid on your screen—even if you don't have an Internet or data connection.
https://www.youtube.com/watch?v=0zKU7jDA2nc

Natural conversations in 40 languages
Let’s say you're taking your first vacation abroad and decide to head to Spain. The only problem? You don't speak Spanish. Now -- equipped with just your Android device -- you can have a fully translated back-and-forth conversation from Spanish to English with very little work. All you need to do is open up your Translate app and press the microphone icon.

More than 500 million people use Google Translate every month, making more than 1 billion translations a day to connect and communicate. The top three most translated phrases every day are: hello, how are you, and I love you. But Google Translate is about more than crossing language barriers. It also helps save lives. Just a few months ago, paramedics in Ireland used Google Translate to communicate with a pregnant women who only spoke Swahili, delivering her baby on the side of the road. (http://www.theregister.co.uk/2015/02/13/google_translate_baby_delivery_swahili/).