Last Revised: December 6, 2015.
HealthKit Data: You can choose to grant access to Outdoor Run++ to read "Date of Birth", "Sex", "Weight", and "Height" information from your Health app (HealthKit). These data points are solely used for calorie calculations. Therefore if you choose not to grant permission to Outdoor Run++ to access your health data all the functionality of Outdoor Run++ is intact except for calorie calculations.
Outdoor Run++ does not write any information to your Health app.