Red Sox, MLB unveil new mobile app for Fenway fans

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Beginning with Friday’s home opener at Fenway Park, the Red Sox and Major League Baseball will unveil a new version of their At the Ballpark mobile app, giving fans the in-seat video they have learned to love — and plenty more.

The latest feature also uses Apple’s iBeacon technology, which locates fans with iPhones inside the stadium so the Sox can send them special offers — seat upgrades, for example, or discounts on team merchandise.

It is all part of a broad effort by professional sports clubs to satisfy — and sell to — fans who once viewed athletic arenas as a refuge from electronic media but who now see stadiums as one more place to be constantly connected. The Patriots, for one, have been at the forefront of using technology, installing a high-capacity Wi-Fi network at Gillette Stadium two years ago so that all 68,000 fans can run the Patriots Gameday app at the same time.

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