QCitizen is the official digital ID mobile app of Quezon City residents, developed by Quezon City IT Development Department. This free app is available on the Android platform and provides access to various benefits and social services exclusive to Quezon City residents. The app also enables users to make regular transactions with the LGU.

With QCitizen, residents can apply for their own QCID, which is the official digital ID used for availing government services. Users can easily register by providing their personal details and uploading a photo of their government-issued ID. Once verified, users can access various services and benefits such as applying for a business permit, paying real property taxes, and requesting for a barangay clearance.