The iTube platform, left, uses colorimetric assays and a smartphone-based digital reader to detect potential food allergen. A screen capture of the iTube App appears on the right. UCLA hide caption

itoggle caption UCLA

Mobile apps and devices track a user's health statistics. But those data are sometimes sold and can end up in the hands of employers and insurance companies. iStockphoto.com hide caption

itoggle caption iStockphoto.com

Who's collecting information about her? Peggy Turbett /The Plain Dealer /Landov hide caption

itoggle caption Peggy Turbett /The Plain Dealer /Landov

Apps that can keep kids entertained during long road trips include (from left) Waze, Story Dice, Mobbles, Cobypic, and Postcard on the Run. NPR hide caption

itoggle caption NPR

Jealous? If you have trouble sleeping, several new apps and devices promise to help you figure out why. In this photo from January, Huan Huan, a female giant panda, sleeps in a zoo in Beauval, France. Franck Prevel/Getty Images hide caption

itoggle caption Franck Prevel/Getty Images