I am trying to use the app on my Apple watch 4 without having my iPhone with me on my runs. But the app on my Apple Watch doesn’t sync at all with my iPhone when I am finished. And it won’t let me use the app on my Apple Watch without it syncing. This was 3 days ago and it still hasn’t synced! I emailed them and we’ll see what they say. Such a hassle trying to use this with my Apple Watch in stand alone mode!!!