Reading Remote ID
One purpose of Remote ID is to give law enforcement and security personnel information for identifying aircraft. Broadcasts are transmitted by one of four methods: Bluetooth 4 Legacy Advertising, Bluetooth 5 Long Range Advertising, Wi-Fi Neighbor Awareness Network (NAN), or Wi-Fi Beacon. The method used determines which devices can detect a given broadcast.
Mobile Devices
Android devices can receive Remote ID messages over Bluetooth and Wi-Fi.
iOS devices are currently only able to read RemoteID messages over Bluetooth.
Available apps:
Android Wi-Fi Scan Throttling
Android 8.0 and later limit the frequency of Wi-Fi scans, which prevents reliable detection of Wi-Fi broadcasts. To disable throttling, enable Developer options (Settings, About phone, tap Build number seven times), then turn off “Wi-Fi scan throttling” under the Networking category. Menu names vary by device manufacturer.