By Chris Morris

PHILADELPHIA (CBS) – On today’s APP-tastic and outta SITE – Carrier Compare.

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Cell phone carriers argue a lot about who has the best coverage, but now a third-party app is bringing some clarity to the discussion.

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Carrier Compare lets you see which carriers offer the best service for your iPhone in different locations. That’s something the Verizons, AT&Ts and Sprints of the world have kept quiet for years – and could be valuable information for business travelers. The app will run you $2.

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Check out the Carrier Compare app.