ThemiCoach app keeps your workouts fresh and your body challenged by offering you a custom plan for running a marathon or any other sport you choose. Registering is free and you can choose between a personalized cardio, strength, and/or flexibility program. The miCoach app uses real-time voice coaching in your ear to help pace you and build speed and endurance. You can track your progress and get coaching feedback after every workout.
Bonus: You get to pick your coaching voice! The free app offers an English male or female coach, as well as noted athletes like Derrick Rose and Reggie Bush.