Love. Love Love my Jeff Galloway marathon training app. He also has 5K, 10K, and half marathon training apps. This app can change a life. No joke. Has helped me go from couch to yesterday's 14 miler and will take me through to my first full marathon. Note: repinned the pic but the message is mine.
Jeff Galloway has developed a training program that promotes low mileage, three running days per week, and a run-walk-run system. Description from bigdogrunning.com. I searched for this on bing.com/images