Use of the CoronaMelder app

The CoronaMelder app has been developed to help fight the spread of coronavirus. The app keeps track of when users have been within close range of one another for a longer period of time. If a CoronaMelder user tests positive for COVID-19, they can choose to alert other app users. App users who get an alert can then get tested and avoid unknowingly infecting others. To find out more about the information on this page, go to ‘Explanation of the data presented’.

Last values obtained on Monday, 14 June. Is updated on a daily basis.

Source: CoronaMelder

Number of people who alerted others via CoronaMelder:

5 less than the previous value

This figure shows how many CoronaMelder users who tested positive alerted other app users of this yesterday.

4,955,832 people have downloaded CoronaMelder.

Value of Saturday, 12 June · Source: CoronaMelder

Factsheet CoronaMelder

Researchers are closely monitoring the CoronaMelder app’s impact. Read the most recent factsheet about this on the CoronaMelder website.

Most recent factsheet CoronaMelder app

Warnings over time

This graph shows how many users with a confirmed case of COVID-19 have informed other users of CoronaMelder of this.

10 Oct 202012 Jun 202105001,0001,5002,000

Source: CoronaMelder