When you run outside:
- go to your device Settings > Privacy > turn Location services On and enable it for the app (choose 'While Using' option);
- find the Running app in your device Settings and enable Motion & Fitness option.
When you run on a treadmill:
- open the app Home screen, tap Start and activate the Indoor mode.
Important: the app tracks the stats only if you keep your iPhone in the pocket or on your arm. Otherwise you have to fill in the logs manually: Menu > Workouts > choose your workout > Show details > Pencil icon > enter the parameters you see on a treadmill screen > tap the check mark icon to save the logs.