Spotify to use health data to improve playlists

Spotify is now working on Apple Health integration in their app to improve playlist quality. Spotify's approach is find songs that motivate users and improve their fitness results.

Using workout and health data might help improving communication with users and adjust features if app could affect user's workout performance or health in general (like, sleep, heart rate and so on).

Reference: Spotify working on HealthKit integration to provide workout playlists based on user health data