If you are using a Lumia 630, 635, 930, or 1520, you may want to check the Store for an update to Motion Data. Version is now live in the Store, although like many of the system apps for Lumia phones, this one forgoes a formal changelog.

Motion Data provides information to apps about how you move and the places you visit. You can use this setting to manage the data that is accessible to apps.

- User interface redesign
- See your activity graphically
- See your places and routes graphically
- Collect more detailed and accurate data
- List installed apps that can make use of motion data
Read more:

Microsoft updates Motion Data step counter for newer Lumia Windows Phones | Windows Central

motion data | Windows Phone Apps+Games Store (United States)