A commuter uses his mobile phone in New York, December 12, 2013. REUTERS/Eric Thayer/Files
Gabby Hinojosa works in fundraising and spends late hours at her office near Washington University. At night, she walks to her car alone and uses SafeTrek, a personal safety app on her smartphone.
When she's in areas she considers dangerous, Hinojosa holds down a blue button image on the app. After safely reaching her car, she releases the button, enters a personal identification number and goes on her way.
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