小外一卡通 (Campus One-Card Service App) is a mobile application tailored for campus one-card services. It enhances traditional card functions with QR code capabilities, offering comprehensive and professional mobile one-card services to campus users.

The app features a wide range of services including campus card management such as recharging, information inquiries, bill statements, transaction history, card blocking/unblocking, lost card reporting, campus card online application, alumni registration, and more.

Campus payments cover a variety of fees like project fees, electricity charges, internet fees, supplementary study fees, proficiency exam fees, party fees, training fees, and tuition fees. Additionally, the app provides reservation services for on-campus restaurants, venues, meeting rooms, study rooms, and more.