5 stars: So a guide for those showing Invalid data. a. The QR code can be scanned once. So if you try to scan the QR code again, it will not work. So to scan it again, exit the app and reopen to get a new QR code. b. The QR code changes everytime you open the app. So if you have screenshot the QR code and try to scan it again it will not work. b. When you open the app, it takes around 10-20 seconds for the app to update to a new QR code.
5 stars: The app works perfectly. QR Code for Digital Certificate can be scan one time only for security purposes. If you got message invalid code, that means the QR Code has been scanned before. Please generate the new QR Code by go back and click on the icon again.
5 stars: First time scan no problem. All info displayed, except batch number. Thereafter, rescan...encounter invalid authentication code. The issue already fixed, good job 5 stars for you
5 stars: app works fine.. u need to scan the Covid 19 Vaccination Digital Cert QR code,(only available for completed dose receivers) located below the profile screen click on the small QR code and it shall appear in a bigger scale, thus you are able to scan and verify..
5 stars: Users should understand that this app only works with the \
5 stars: No problem scanning and verifying Pfizer and Sinovac. You need to tap on the \
5 stars: Very fast without the need for internet connection. Very convenient for cross checking vaccination data when internet connection is down via ...