Heads up US-based readers, Starbucks is currently offering a free month of Lumosity's Premium service as its App Store 'Pick of the Week.' The promotion is worth a solid savings of $15, and opens up additional games and features for an already extremely popular app.
For those unfamiliar with Lumosity, it's essentially "sophisticated, scientifically designed brain training for anyone." The iOS app, which currently has a 5-star rating on 85K+ reviews, offers games that help improve skills in the areas of memory, problem-solving and more.