Why: The Adidas Train and Run app has handed the baton over to Runtastic, and this one is ideal for serious runners. It not only tracks activities — from running and cycling to butt workouts and push-ups. Plus, detailed information on what to eat, how to train, and holiday workouts {so important!}. So even if you don’t run, this app will get your workout goals in place and help you see them through to the end.
Download the app here.
