U-WIN is an Android application developed by National Health Portal-MoHFW, available for free in the Lifestyle category with a focus on Health & Fitness. The application is designed to assist Health Care Workers (HCW) in various tasks related to the Universal Immunization Program (UIP) of the Government of India.

With U-WIN, HCWs can efficiently perform tasks such as beneficiary registration, verification, and updating vaccination details. The application allows for Aadhaar authentication to prevent duplication and provides the generation of ABHA IDs for beneficiaries using Aadhaar as proof of identity. Additionally, U-WIN offers user logins for Vaccinators (ANM), ASHA workers, and Delivery Point Managers (DPM), enabling them to manage vaccination sessions, pre-register beneficiaries, and record delivery outcomes seamlessly.