The Device-ID is a generated device product number from the NAVIGON app, which is used for the purpose of registering the app at 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.
- Tap on the Menu on the top left side (block symbol/3 bars) and then Settings.
- Now select Information ( i ) on the top right side.