Tools
Learning
You can try to learn a new language with a toolkit:
Babbel: https://www.babbel.com/;
Rosetta Stone: http://www.rosettastone.com/.
It’s not cheap; but I’ve heard it works very well.
Translation
Or, you can use the Google Translate app to do the hard work for you.
It’s a very sophisticated, mobile translating tool.
You can take a photo of text to translate, talk into the mic; or type the text to translated.
Microsoft has Skype Translator.
Twitter uses Microsoft’s Bing translation technology.
See the Apps page under Tools for more of them.