app features：
1. Digital storage of multiple certificates and credentials: supports the collection and storage of certificates, proofs, and membership cards issued by various institutions, ensuring that your important documents are always avAIlable.2. Secure and reliable identity verification: By signing electronic documents, reliable identity and rights authentication are provided to ensure the security of your information.
3. Seamless connection to Internet services: Without an account and password, use the stored credentials to easily connect to Internet services and improve your online experience.
app use：
1. Intelligent storage: Store all your important certificates, proofs, and membership cards in one application for easy management and retrieval.2. Simplified operation: Use stored electronic credentials to easily complete various online operations and purchases without the need to repeatedly enter account information and passwords.
3. Convenient access: Quickly access and use stored credentials through a smartphone to enter places such as offices and performance halls.
app experience：
1. User friendly interface: A simple and intuitive design that allows users to easily navigate and use various functions of the application.2. Quick response: The efficient performance of the application ensures that users can quickly store and call the required credentials and certificates.
3. Continuous updates: Applications are constantly updated and improved to meet the ever-changing needs of users and provide the best user experience.
app highlights：
1. Comprehensive file management: supports multiple types of certificates and credentials to meet users' different storage and management needs.2. Powerful security features: adopting advanced encryption technology to ensure the security of users' personal information and credentials.
3. Wide compatibility: Compatible with multiple devices and operating systems, users can access and manage their credentials and certificates anytime, anywhere.