mAadhaar India App is the official mobile application developed by the Unique Identification Authority of India (UIDAI) to provide an interface to Aadhaar cardholders to carry their demographic information and photograph on their smartphones. Users can add their profile in the app and access it whenever and wherever they want. The app allows users to lock and unlock their biometric details and use a time-based OTP in case of network issues. It is not mandatory to have an Aadhaar card, but it is used as an identity card in most government papers. The app can be used to share eKYC or QR codes with service providers who require Aadhaar verification. The app is not an official Aadhaar app and is not affiliated with UIDAI.

The advantages of the mAadhaar India app include:

- Convenient access: Users can carry their demographic information, such as name, date of birth, gender, and address, along with their photograph linked to their Aadhaar number on their smartphones. This eliminates the need to carry a physical Aadhaar card.

- Aadhaar verification: The app allows users to share their eKYC or QR code with service providers who require Aadhaar verification before providing services. This makes the verification process faster and more efficient.

- Biometric lock/unlock: Users can lock and unlock their biometric details using the app, providing an extra layer of security and privacy for their Aadhaar information.

- Time-based OTP: In case of any network issues, users can use Time-based OTP (one-time password) to access their Aadhaar profile.

- Multiple profiles: The app allows users to add up to five profiles to their device, making it convenient for families or individuals with multiple Aadhaar cards.

- Easy updates: Users can update their address online through the Self-Service Update Portal (SSUP), saving time and effort in visiting physical enrollment centers for address changes. Other details such as demographic information and biometrics can also be updated through the app.

It is important to note that the mAadhaar India app is not an official app for downloading Aadhaar cards and is only a guideline. Users should visit the official UIDAI website for any official Aadhaar-related services.