eRouška 2.0 source code is audited by independent institutions which check that it follows its declared privacy policy and complies with Information about personal data processing.

The application's code is open-sourced on GitHub (Android, iOS). eRouška 2.0 is the only application in the Czech Republic that is allowed to use the Apple/Google protocol (more information: Apple – English, Google – Czech).

Audits and reviews – eRouška 2.0

• FIT CTU – Review of the eRouška mobile application from October 12, 2020
• Statement of the Association for personal data protection on eRouška, September 21, 2020.

Audits and reviews – eRouška 1.0

• FIT CTU – Review of the eRouška mobile application from April 2, 2020
• Ackee – Additional audit of FIT CTU's audit of eRouška application for Android, version 1.0.381
• Expression of trust in the app – Ondřej Veselý, external R&D ethics expert for the European Commission
• Using Bluetooth technology to trace covid-19 propagation – Ole Jann, Pavel Kocourek, Jakub Steiner (CERGE-EI), April 2020
• Ackee – Additional audit of FIT CTU's audit of eRouška application for Android, version 1.0.381, and iOS, version 1.0