Simplify QR generating process for COVID-19 by directly showing QR code in one click -> Play Store link in the description
Starting from March 1st, 2022, our government disabled mandatory QR check in for major facilities, so this app is no longer valid.
Currently I disabled this app in the Play Store, so you will not be able to find it. Existing users can still use it, but it will throw an error because the QR generating API is shutted down completely.
Thank you for your understanding.