Are you concerned about not being able to communicate in another country?
Google Translate is the perfect app for you. A robust extension of translate.google.com, this app provides assistance to help you translate between various languages. You can type in words to get the translation. However, the best part of this app is the visual and speech translations. You can take an image of text and see the translation. You can even open up conversation mode to translate as someone is speaking. You can even translate while offline, to save on your cell phone data plan.
App Name: Google Translate
Operating Systems: iOS, Android
Developer: Google Inc.