How to take 2 pictures of myself and put it in one picture with my IPhone?

Lol, Alrighty.

So, I've seen a lot of people on Instagram, and Twitter have a picture of themselves standing, then right next to it, they're doing some other pose or something in the same picture. This might be a noobish question, in 2013. But I need a good app to do it with my iPhone. Lol, So thanks.

SPLITPIC. Its a great app

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