Logo CoronaMelder app

What about my privacy?

The app exchanges random codes with other phones. These codes do not contain any personal information about you or your location. So the app does not know who you are or where you are.

Even if you are infected with coronavirus and you report this using the app, this information cannot be linked to your name or contact details. Using the app is also completely voluntary.

Download this video
Written out text of the video

CoronaMelder - Your privacy

The CoronaMelder app sends you a notification if you have been near someone who later tests positive for coronavirus. But does the app always know where you are? No. The app does not know where you are, or who you are. This is how it works: when your phone is near another phone that has the app, the phones exchange a random code using bluetooth. The app remembers those codes… but it doesn’t know which phones they came from… or where you were. The app only knows if you were close to another phone that also had the app, and on which day it was. So if you receive a notification, it won’t tell you who it came from. And if you test positive for the virus yourself, you can choose whether to add your coronavirus status to the app together with the GGD, the Regional Public Health authority in the Netherlands. Downloading the app is voluntary at all times. We can only get coronavirus under control together More information? Visit