The Dutch Coronavirus tracing app was introduced across the country on the 10th of October 2020 following the last senate vote of using the alert-based system.

The CoronaMelder app which was first introduced in early April will warn users if they have spent 15 minutes or more in close contact with someone who has tested positive for the virus in so far as the user gives permission for the information to be used.

It is not yet compulsory to use the app, which works by exchanging random codes with other phones via Bluetooth technology. The app has been available for download since mid-August and was already operational in five of the 25 regional health districts.

The app is available in English as well as Dutch and there is information about how it works in a number of other languages online, including German, Polish and Turkish.