Repurposed iPhone 4 for health tracking

I have reused my iPhone 4 as a health tracker with the help of 3 apps. The apps include Moves, MyFitnessPal, and Runkeeper. Moves tracks all my daily activities and creates a timeline and summary of my walking, biking and car transportation. I carry my iPhone 4 in my pants pocket. It will even automatically track treadmill walks. MyFitnessPal allows me to track food intake and Runkeeper which I have used since 2008 tracks all my cycling and walking activities.