Doesnt sync with Apple HealthKit

Downloaded this app today with high hopes, but this app doesnt show up in the HealthKit "Sources" screen. So syncing was a non-starter. Im on iOS 9.2. Downloaded a competitors app and it showed up right away, so I know Health is able to sync with other apps, no problem. I have yet to find a BP app that will reliably sync with a cuff AND HealthKit...

Magenbrand about Blood Pressure App SmartBP