A guide to Europe’s coronavirus contact tracing apps

Coronavirus app

More than 20 countries across Europe have launched or plan to launch apps that seek to break the chain of coronavirus infection by tracking encounters between people and issuing a warning should one of them test positive.

Most countries in the region have opted to use Bluetooth short-range radio to monitor close encounters that could spread the disease, after concluding that tracking people’s movements using location data would be intrusive.


Since there is currently no cure or vaccine for coronavirus, governments have turned to technology to contribute to broader efforts to contain the pandemic.

After initial efforts misfired, Apple and Google whose iOS and Android operating systems run 99% of the world’s smartphones – developed a standard that logs contacts securely on devices.


In the European Union, Austria, Croatia, Denmark, Germany, Italy, Republic of Ireland, Latvia and Poland have launched apps using the Google-Apple standard. Outside the bloc, similar apps are now live in Switzerland, Northern Ireland and Gibraltar.

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Another nine European Union countries plan using Google-Apple framework apps, which would by design be interoperable.

France and Hungary have launched a different type of app that stores information on a central server. The resulting rift in standards means it will be difficult to make all of the apps work seamlessly across Europe.


The apps typically show a ‘green’, or safe, status. Should the user spend more than 15 minutes within two metres of another app holder who then tests positive and uploads the result, they would get an exposure notification.

What happens next varies: Germany’s app advises users to seek medical advice; the Swiss shares a hotline number to call; while in Ireland users can opt to sharing their phone number and get a callback from a contact tracer.


The design of Bluetooth-based apps represents a trade-off between usefulness and privacy. It is not possible, for example, to pinpoint the exact time and place of risk events from the app alone.

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The most privacy-oriented apps make it impossible for their administrators to monitor the number of exposure notifications going through the system – a key way to measure whether the apps are doing the job for which they are intended.

Yet the Google-Apple framework does allow monitoring of exposure notifications. This is enabled in the Republic of Ireland’s smartphone app which also has add-ons such as a symptom tracker, where users can volunteer to share information on how they feel, helping the health authorities to map the pandemic.

The team at Platform Executive hope you have enjoyed this news article. Initial reporting via our content partners at Thomson Reuters. Reporting by Douglas Busvine. Editing by Philippa Fletcher.

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