title: Is there a unique identifier for a Bluetooth device accessible to iOS and Android without connecting?
body: <p>We are creating a bluetooth hardware device and want to store a unique identifier in the database so that multiple users won't try to connect to the same device. There is an Android and an iOS app. </p>
  
  <p>It is my understanding that in iOS you can't access the MAC Address and the UUID provided is generated on the iOS side. We can add a characteristic providing a UUID, but is there a way to have a consistent identifier on iOS and Android without connecting to the bluetooth device?</p>