NUNAV Navigation does not store any personal user data and is entirely ad-free. The system only transmits and processes information about traffic. This includes the roads a driver can use and the speeds at which it is possible to drive. NUNAV calculates the traffic model based on this information. To NUNAV, the sender of these data is an anonymous user who is irretrievably deleted every two minutes and then replaced by a new one.

NUNAV only provides a regular anonymised signal and does not track the journey. It does not access other apps on the smartphone, for example, nor does it create user profiles. In coordination with the City of Cologne, it is Koelnmesse – and not an ad-based software/algorithm – that manages the route taken to the right parking spaces and access roads.