Marathon Training funktioniert nicht

The Ultimate Marathon training app: 42K Runner is the easiest and most successful program for training for your first full marathon. 42K Runner improves your fitness with a professionally designed training program.  Motivation is the key factor in long distance running, and 42K Runner keeps you motivated - it's the true magic of this app, and it's built into every screen.  Built by pros and with proven success, this is the ULTIMATE marathon training app.  You start with a 21K fitness level, and the running gradually increases to a full 42K.  NOTE: Continued use of GPS running in the background can dramatically decrease battery life.  This app keeps people running.  The running plan is achievable and enjoyable.  The app keeps a log of your runs & achievements, and also awards you with badges.  It even includes motivational quotes to keep your spirit in tune with your body.  Just plug in your headphones, play your favorites music, and the app will guide you.  You can easily share all your progress with friends on Facebook, Twitter, or by mail.  "If you thought that you could never run - get ready for a BIG surprise.  "One of the best iPhone running apps I’ve tested". • The upgrade is either a 6 Month subscription, or a lifetime one time upgrade.