RG Digital AL is an Android app that allows citizens of Alagoas to carry their ID card on their phone. This app can only be used with an ID card issued after August 15, 2019, which has a QR code printed on the back. By using the app to scan the QR code and validate their biometric data, users can generate their digital ID card.

It's important to note that in order to use the RG Digital app or request a physical copy of the ID card, the physical ID card must have a QR code on the back. Additionally, a fee may be required to request a physical copy.

Overall, RG Digital AL provides a secure and valid digital ID card that can be used throughout Brazil.