Billboard has updated and upgraded its Charts App with a new chart, alerts, and reduced pricing. By Billboard Staff Billboard has updated and upgraded its Charts App with a new chart, alerts, and ...

There are plenty of star charts around the app store that feature augmented reality, where you tilt your iOS device toward the sky and the app reveals what planets and stars are in your field of view.

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Released Thursday (Feb. 17) in the iTunes store, the Billboard Chart App features 15 charts, from the Hot 100 and Billboard 200 to genre rankings and ringtones. By Billboard Staff You can now access ...