One of the best reaons to have an iPhone is to stay constantly connected, whether it's via social networking, instant messaging, texting, or even a good old fashioned phone call. But with hundreds of apps available, it's not easy to keep your iPhone from getting cluttered with use-once-and-forget-them programs. That's why we've sorted through tons of communication apps to find the six most useful programs for staying in touch. Delete the clutter on your phone and download these to become a communication expert.

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