The Covid19Verify application provides an opportunity to check the validity and authenticity of Covid-19 certificates issued in accordance with the EU regulation, observing the regulations adopted in Latvia. The check is performed by scanning the QR code of the certificate presented by the person. The application allows you to determine the validity of this type of certificates - a certificate of vaccination against Covid-19, a certificate of the results of laboratory tests of Covid-19, a certificate of the fact of Covid-19 disease.Using the app - When you open the app, you must use the camera built into the device and scan the QR code. The app notifies you if the scanned certificate is valid or invalid.