Overview of Solutions by Country

Below we provide an overview of deployed or proposed COVID-19 tracing approaches in selected countries based on our ongoing follow-up of various approaches published in media and academic forums.

Latest Update: June 7th 2020

AustraliaCovidSafe App. More than 1 million downloads by Australians. Requires users to provide detailed registration information when installing the app. Follows a centralised tracing approach allowing the Central Authority to trace and identify all contact persons of a user tested positive with COVID-19.
AustriaContact tracing app Stopp Corona by the Austrian Red Cross. Based on Bluetooth Handshakes. Based on its privacy audit report, the system is based on the exchange of the public keys of apps participating in the system. Thanks to this, contact tracing is in principle decentralised, i.e., the Stopp Corona Backend will not be able to determine contacts between individual users. However, establishing of contacts and exchange of public keys happens either over the Google Cloud (for manual handshakes) or the Backend of the p2pKit (for automatic handshakes).
FinlandProposal for a centralised tracing solution. (In Finnish | Swedish)
FranceTousAntiCovid tracing app based on a centralised tracing approach.
GermanyAfter initially supporting the PEPP-PT design, the German government changed course and has assigned Telekom and SAP to develop Corona-Warn-App which is based on the Google/Apple exposure notification API.
IsraelHashomer proposal by Pinkas and Ronen. Closely related to the Apple/Google proposal and DP-3T by limiting user traceability to the duration of one ‘epoch’ (e.g., one hour). Adds resilience to so-called relay attacks by introducing GeoHashes. HaMagen is an app that is endorsed by the Ministry of Health in Israel.
ItalyTracing App Immuni is based on the Google/Apple exposure notification API
NetherlandsNot-for-profit partnership PrivateTracer, using the the Google/Apple exposure notification API.
NorwayDeployed app Smittestopp. Collects extensive information about users (including GPS location) on server. Users need to register and are known to the service provider (Health Authority). At the beginning of February 2021, 846 100 people had downloaded the app. This corresponds to 19.3 per cent of the population over the age of 16.
SingaporeTraceTogether app. The app uses BlueTrace solution and source code which is a centralised tracing solution. The app has achieved a 80% Singaporean population using rate.
ThailandMorgana app. The app uses GPS, Bluetooth, and QR code check-in scanning to trace locations and persons in the vicinity. Thailand paired the proximity contact tracing app with a QR code check-in system, called Thai Chana.
United KingdomNHS COVID-19 App follows a centralised tracing approach in which Apps collect daily identifiers of other Apps they encounter.
Overview of COVID-19 tracing apps / approaches in selected countries