| Country | # of Apps |
| Australia | 2 |
| Austria | 1 |
| Brazil | 1 |
| Canada | 2 |
| China | 1 |
| Czech Republic | 1 |
| Denmark | 1 |
| Finland | 1 |
| France | 3 |
| Georgia | 1 |
| Germany | 3 |
| Hong Kong | 1 |
| Hungary | 1 |
| Iceland | 1 |
| India | 5 |
| Indonesia | 1 |
| Israel | 1 |
| Italy | 5 |
| Jordan | 1 |
| Latvia | 1 |
| Mexico | 1 |
| Morocco | 1 |
| Netherlands | 1 |
| Norway | 1 |
| Poland | 2 |
| Russia | 1 |
| Singapore | 2 |
| Spain | 1 |
| Switzerland | 1 |
| Thailand | 1 |
| Ukraine | 1 |
| UK | 1 |
| US | 5 |
| South Africa | 1 |
| Japan | 1 |
| Vietnam | 1 |
| Peru | 1 |
| South Korea | 1 |
| Uruguay | 1 |
Map
This map illustrates the number and geographic distribution of contact-tracing applications, according to the Authors' searches, as of September 2020. The applications originated in a particular country based on the location of their developers.