The Device-ID is a generated device product number from the NAVIGON app, which is used for the purpose of registering the appat the same time. The purchased in-apps of the NAVIGON app can be listed and found via this Device ID.
This is how you can find the device ID:
- Start the NAVIGON app on your iOS device.
- Slide right to the Main menu and tap on Settings.
- Now select Information (i) on the top right corner.