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I'm trying to scan devices on iOS when the app is in background mode. I've learned that I have to tell explicitly what service ID I'm looking for. I was trying with 180F which is the battery service but it didn't find anything. Is it possible at all on IOS? It works well on Android.
I'm using the react-native-ble-manager package.
Can you tell me maybe a common service UUID what every phone advertises?
My aim is to track every contact with phones which are near me and it should work when the app is in background mode.
I am interested in other approaches even if they're not React Native. It must be possible on iOS as well as other apps already use it. (eg. Happen).