Either people are sticking to their New Year’s resolutions, or interest in fitness has found new life through technology. Health and fitness app usage is up 62% in the past six months. According to Flurry Insights, health and fitness tracking apps are growing 87% faster than any other app category. While tech companies have been trying to impact the health industry for years, consumer interest has been reignited thanks to wearable fitness trackers like the Fitbit and Jawbone UP.