PASS by U+ is a comprehensive mobile application designed to streamline various authentication, identification, and financial services for LG U+ customers. Acting as a digital wallet, it incorporates simple identity verification, mobile identification options such as a driver's license and resident registration card, and credentials known as PASS certificates. These features facilitate legally-recognized identification, allowing users to conduct financial transactions and access public services with ease.

The application boasts a notable security function that provides real-time warnings against financial fraud, such as spam or phishing attempts. Additionally, the service includes a function for asset management, enabling users to view and manage their financial products conveniently.