Corona-Warn-App

4.1
152K reviews
10M+
Downloads
Content rating
Everyone
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About this app

The Robert Koch Institute (RKI) – in its capacity as the central federal institution for public health and as the German national public health institute – publishes the Corona-Warn-App on behalf of the German government. The app serves as a digital complement to distancing, hygiene and wearing masks. Additionally, it provides a functionality to add your digital vaccination certificates to prove your vaccination status. It uses Bluetooth technology and the Google Exposure Notification APIs. The app is designed to help break infection chains by informing you if you were recently close to someone who subsequently tested positive for corona. However, at no time does it collect any personal information. Who you are and where you are remain secret – and your privacy is well-protected.

HOW THE APP WORKS

Exposure logging is the core of the app and should always be active. When enabled, smartphones exchange encrypted random IDs with other devices using Bluetooth.

The random IDs only provide information about the duration and distance of an encounter. No one is able to identify the person behind these IDs. The Corona-Warn-App does not collect any information about the location of the encounter or that of its users.

Based on maximum corona incubation times, the random IDs your smartphone collects are stored in an exposure log for 14 days and then deleted. If a person is diagnosed with corona and chooses to share his/her own smartphone’s random IDs, all persons previously encountered will then be notified anonymously.

No one will know when, where or with whom the exposure event took place. The infected person remains anonymous.

In addition to the exposure notifications, affected users will receive clear recommendations for action. Important: Information about the notified persons is not accessible at any time.

HOW YOUR DATA IS PROTECTED

The Corona-Warn-App is designed to be your daily companion, without knowing your identity. This is why the app cannot tell anyone who you are. Data protection is fully guaranteed throughout the app’s entire service life.

- No registration required: No email address and no name need to be submitted.

- No personal information is transmitted: When you encounter another person using the app, your smartphones only exchange random IDs. They measure the time and distance of an encounter, but do not allow to identify persons or find out locations.

- Decentralized storage: Data is stored only on the smartphone itself and deleted after 14 days.

- No third-party access: Neither the person reporting a proven corona infection, nor those who have been notified can be traced – not by the German government, the Robert Koch Institute, any other user, nor by Google.

This app is not intended for any use outside of Germany. Corona-Warn-App is the main corona app for Germany, where it is interconnected with the national health care system. Despite of the above, Corona-Warn-App is also available in this country. It is provided for anyone living, working, vacationing, or visiting Germany regularly or for an extended period of time.

The terms of use for the Corona-Warn-App apply: https://www.coronawarn.app/assets/documents/cwa-eula-en.pdf. By installing and using this app, you accept these terms of use.
Updated on
May 2, 2022

Data safety

Developers can show information here about how their app collects and uses your data. Learn more about data safety
No information available
4.1
152K reviews
John Doe
March 24, 2022
UPDATE: With the latest update 2.19.2 "Proof of status 2G+" is shown again. Thanks for fixing so quickly. OLD: [...] If you scan the certificate as you're asked to do, there is no issue. It would be nice to get a graph with selectable time range (e.g. by clicking on R value number) on how the data has evolved over time and not just today's numbers.
32 people found this review helpful
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Robert Koch-Institut
March 24, 2022
Thank you for your feedback and the support!
Asem M.
April 6, 2022
Edit: Issues were fixed. Thanks! With latest update the app is bugged, it keeps sending notification "you have new messages". Also the labeling of the current status like "2G" is gone, not sure if this is another bug or intentional.
5 people found this review helpful
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Robert Koch-Institut
April 6, 2022
EDIT: Thank you for your updated comment and review score.
isabel gomez
April 22, 2022
The only way I can open this app is by opening it through the app store. Otherwise if I click on it directly or even through the app manager from my phone it just displays a black background with the icon of the app and stays like that forever.
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Robert Koch-Institut
April 22, 2022
Thank you for your feedback. Do we understand you correctly that you can no longer open the app via the icon for the app on your homescreen or has it disappeared from there altogether? If the icon is no longer displayed, you can add it again from the list of your apps.

What's new

This update includes bug fixes and provides the following new functions:

You can now create rapid test profiles for your family members. You can use it to speed up the registration at a test site. To register personal data, only the relevant QR code of the rapid test profile needs to be scanned.