COVIDCert Check NI is a free Android app developed by Health and Social Care Northern Ireland for businesses and venues to securely scan and verify the COVID certificates of their customers. This app is designed to validate if the customers have fully vaccinated against COVID-19, had a negative test, or have recovered from COVID-19.

The app works by allowing staff managing access to premises to scan the 2D barcode on the customer's COVID certificate using their mobile device's camera. The staff can then see if the certificate is valid. It is important to note that no personal data is stored or transmitted during this process. The app requires the user's consent to the terms and conditions before it can function, and users must allow the app to use their camera by clicking "OK" when prompted.

COVIDCert Check NI is a useful tool for businesses and venues in Northern Ireland to ensure the safety of their staff and customers. It is easy to use and provides a secure way to verify COVID certificates, giving peace of mind to everyone involved.