Starbucks offering free month of Lumosity Premium as Pick of the Week

Starbucks is offering one free month of Lumosity Premium service as part of its Pick of the Week promotion, the first time that it has offered an in-app purchase through the App Store. The deal must be redeemed and activated on an iPhone or iPod touch using the official Starbucks app, at which point the premium features are unlocked on all platforms. 
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