I have been done some testing on location tracking between iOS App for Home Assistant and the iCloud Integration

The verdict of 2020-02-08 is quite clear, the iCloud integration is way more precise than the iOS App.

Anette:

The picture icon is the device_tracker.awn_icloud and the AWN icon is the device_tracker.awn_ios.

The real location is where the device_tracker.awn_icloud points to.

Normann

The picture icon is the device_tracker.bnp_icloud and the AWN icon is the device_tracker.bnp_ios.

Again, the real location is where the device_tracker.bnp_icloud points to.

The picture icon is the device_tracker.cwpn_icloud and the AWN icon is the device_tracker.cpwn_ios.

Again, the real location is where the device_tracker.cwpn_icloud points to; although the device_tracker.cpwn_ios is acceptable.