I would like to suggest that we could use BLE beacon within the app.
One possible case could be as described by Appsheet here:
Please see this short video explaining what beacon is and possibilities: https://www.youtube.com/watch?v=hTtOTy0kqpY
In the app it could be used to the same use cases as NFC, but with longer range, as it dont have to be as near by as a NFC-chip.
Or it could be used in a “Show if”-expression, that some views is shown/only visible if you are nearby a bluetooth beacon.
It could be used to indoor tracking/navigation or to trigger a workflow, eg a check-in/presence workflow.
Maybe it could be done together with https://developers.google.com/beacons/get-started as it supports both Eddystone and iBeacon.