The purpose of the SwissCovid app is to stop COVID-19 from spreading further and to identify any possible second wave in good time in order to tackle it more effectively. The app complements the cantons’ conventional contact tracing of transmission chains. Pursuant to Article 12 of the Ordinance on the Proximity Tracing System for Coronavirus SARS-COV-2 (OPTS), the Federal Office of Public Health provides the Federal Statistical Office (FSO) with statistical data periodically and in fully anonymised form. The FSO publishes the number of active SwissCovid apps, the number of downloaded SwissCovid apps and the number of entered covid codes and updates these data on working days.