The number of older Americans (ages 55-64) using online dating apps has doubled in the past two years. Just 6 percent of seniors were using dating apps such as Tinder in 2013, but 12 percent were using them in 2015. That said, younger Americans are using such apps at higher rates. In 2013, about 10 percent of 18- to 24-year-olds were engaged in online dating. In 2015, that figure had grown to 27 percent. (Time)