Fitness Buddy App

I use the Fitness Buddy App while I work out at the gym. The app does a good job of transferring over the time it took for me to complete a workout, normally 10-15mins after I've completed the workout, but for some reason the calories I burned during the workout never syncs with my activity rings. Is there anyone else having these issues with the same app or other fitness apps? As far as trouble shooting the issue, the only thing I've done to this point is ensure all updates are current, I've rebooted my phone and watch, with no luck....Any help would be greatly appreciated.

V/R

DD