Can you use iMessage internationally?

I live in the United States and my friend lives in South America.

Extra information: I have an iPhone and she has an iPod Touch (Wi-Fi).

You can if your cellular plan allows it it might charge you if your not sure but I recommend you both getting the app "kik" and just create an account on there its easy all you need is to make a username and password then add each other then use that to text each other and it will use a small amount of 3g but that's all it sends messages and pics faster than imessage

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