Germany launched its own national contact detection application this week, in a bid to curb the spread of the coronavirus as the country gradually began to lift restrictions. One day after the release of the application "Corona-Warn" has 6,5 million downloads.
German Health Minister Jens Spahn reported on Twitter that the number shows confidence in technology and urged citizens to participate in the "team game" to curb the virus.
Announcing the Corona-Warn application in a press conference, Spahn said: "The application is not a panacea, but an important tool for curbing the virus. "The best way to do that is to get a lot of people involved."
With 6,5 million users, the app has dropped from 7,8% of the German population in just 24 hours. By contrast, the French app StopCovid has dropped by 2% of the population since its release earlier this month. Italians have a percentage of 3,5% with the Immuni application two weeks after the release of the application.
The Corona-Warn app was developed in six weeks by a team of developers from Deutsche Telekom and software company SAP. Christian Klein, CEO of SAP, praised the result of the collaboration:
Corona-Warn was developed using a Bluetooth-enabled contact tracking API developed jointly by Apple and Google. The API is designed to maintain the privacy of users by limiting the amount of personal data processed.
OR Apple and Google provide an alert box to each application that uses the API. The API transmits a random ID while simultaneously scanning and locally storing the IDs of other phones using Bluetooth Low Energy (LE). The ID is only valid for up to 20 minutes before it is changed.
If a user tests positive for the Qur'an, they will receive a QR code along with their results, which allows IDs to be displayed. In turn the ID of the infected user will generate a warning for the devices near him.