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Free Apps Eat Your Smartphone Battery 214

judgecorp writes "Here's a reason to pay for smartphone apps: the free versions can spend three times as much energy finding and serving ads as they do serving their actual purpose. Research from a Purdue University scientist found that as much as 75 percent of the energy used by free apps (PDF) goes on accessing location services, finding suitable advertisements and displaying them."

"Love your country but never trust its government." -- from a hand-painted road sign in central Pennsylvania