We recommend the below app settings on your iPhone or iPad.
These are located at Phone Settings > Scroll down > vWork.
Allowing vWork access to background app refresh ensures the app can sync in the background.
Allowing vWork access to mobile data ensures jobs sync while you are out and mobile (away from WiFi)
For location tracking setting to 'always' will give better positioning, setting to 'only when I use the app' gives you better privacy.