This first version of Vivace is all about step counts and brisk walking. Your iPhone will recognize your steps as long as you have your phone with you while you walk. If you have an external activity tracker that syncs with Apple HealthKit, then any walking you do without your phone will be counted by Vivace after the next time you sync your tracker with your phone. Some activity trackers are able to recognize and track additional physical activity (such as swimming or biking) but this first release of Vivace will only look for step counts recorded by your fitness tracker. We’ll prioritize our features based on user input – so if you have a favorite activity that we aren’t able to track, let us know!