The Corona warning app is intended to warn if there has been contact with an infected person. More than half a million times, people have now posted positive test results there.
Since the Corona warning app was launched, more than half a million people have shared their positive test results via the smartphone application. The Robert Koch Institute (RKI) announced this on Thursday on Twitter. “In doing so, they warned others and contributed to ending chains of infection.”
Experts assume that this has broken chains of infection in over 200,000 cases. However, the number of relevant warnings could be much higher if all users of the app who tested positive also entered this in the app. Initially, according to government information, not even 40 percent of those affected dared to trigger this chain of alarms. The proportion is now significantly higher, but exact figures are not available.
In a representative opinion poll published by the digital association Bitkom in June 2021, 72 percent of app users said they would share a positive result in the app. In January 2021 it was only 62 percent.
The corona warning app to avoid chains of infection was released on June 16, 2020 in the Apple and Google stores. In the first few months, the spread developed very dynamically. In September 2020, the RKI had registered over 18 million downloads in the Google and Apple stores. After that, however, the curve flattened significantly.
Most recently, the RKI recorded 32.4 million downloads. The number of active users is lower because it does not record who has already uninstalled the app or who has not reinstalled it after changing their smartphone. The federal corona warning app is still one of the most successful apps of its kind worldwide.

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