iPhone Screenshots


The Robert Koch Institute (RKI) – in its capacity as the German national public health institute – publishes the Corona Tracing App on behalf of the Federal Government. The app serves as a digital complement to distancing, hygiene and wearing masks. It uses Bluetooth technology and the Apple/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 COVID-19. 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.


Whenever you leave the house, activate the exposure logging feature - it is the heart of the App. 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 coronavirus incubation times, the random IDs your device collects are stored in an exposure log for 14 days and then deleted. If a person is diagnosed with COVID-19 and chooses to share his/her own device’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.


The Corona-Warn-App is designed to be your daily companion, without knowing your identity. Data protection is 100%-guaranteed throughout the app’s entire service life and for all functions.

• No registration: No email address and no name need to be submitted.
• No conclusions about identities: When you meet another person using the app, your smartphones only exchange random IDs.
• 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 COVID-19 infection, nor those who have been notified can be traced – not by the Federal Government, the Robert Koch Institute, any other user, nor by Apple.

This app is not intended for any use outside of Germany. Corona-Warn-App is the main COVID-19 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.

What’s New

Version 1.5.3

Corrected text for the release notes for app version 1.5.2: An updated version of the English Data Privacy Note and the Terms of Use is now also available in the Polish, Romanian and Bulgarian app versions.

Ratings and Reviews

4.5 out of 5
36 Ratings

36 Ratings

Nocovbecca ,

Great app but not for receiving results

I downloaded the app originally to be able to access my test results. However these have still not come through a week on. I received them after many consistent emails to the laboratory. Otherwise the app is great, it does what it is supposed to do and it’s really easy and clear to use

Developer Response ,

The automatic notification for the test result after registration of the QR code does not yet work smoothly. In addition, outdated QR Codes are currently still in circulation. With a positive test result, you will receive a teleTAN via the hotline (0800 7540002), which you can use to enter the positive test result into the app.

Detailed information on this can be found in the FAQ at https://www.coronawarn.app/en/faq/#qr_test

n323 ,

Useless in the UK

There's no way in the UK to register a positive covid19 test with one of these apps. Until then, this app and others like it are useless. Still giving 5 stars to an open source German app that couldn't be replicated here for some reason.

Developer Response ,

Thanks for your feedback. There are discussions about a European framework that enables the exchange between the country-specific apps.

Der gerechte Rächer ,

Everybody should use it

Given there won’t be a UK equivalent app potentially until end of the year, everybody in the UK should use it, not just travellers to Germany. Given its decentralised structure and open-source approach there is really no reason not to use it.


Robert Koch-Institut
24.5 MB

Requires iOS 13.6 or later. Compatible with iPhone.


English, Bulgarian, German, Polish, Romanian, Turkish

Age Rating
Infrequent/Mild Medical/Treatment Information


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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