mAadhaar App Guide 2026: Setup, Features and Offline Aadhaar Explained

Most people install the mAadhaar app, download their Aadhaar PDF once, and never open it again. That is a waste, because the useful parts of the app are the ones nobody advertises: locking your biometrics so nobody can authenticate as you, generating a Virtual ID that hides your actual Aadhaar number, and producing an offline eKYC file that proves who you are without exposing the full record. Those three features solve real problems, and they are all free.

This guide from TechLein covers what the official UIDAI app does, how to set it up properly, and how to use the privacy features that most guides skip past. It also flags what the app cannot do, so you know when a trip to an Aadhaar Seva Kendra is unavoidable. mAadhaar is published by UIDAI itself, so download it only from the official listing on the Play Store or App Store, not from an APK site.

Key takeaways

• mAadhaar carries a digitally signed copy of your Aadhaar that is valid proof on its own.
• Biometric lock stops anyone from using your fingerprints or iris for Aadhaar authentication until you unlock them.
• A Virtual ID lets you share a temporary 16-digit number instead of your Aadhaar number.
• Offline eKYC produces a share-code-protected file that verifies your details without revealing the full Aadhaar record.

What mAadhaar actually is

mAadhaar is the official UIDAI application for Android and iOS. It holds a digitally signed copy of your Aadhaar record on your phone, and that copy carries the same legal standing as the printed letter. Producing it at a verification counter is enough; you do not need the paper original alongside.

The app runs in two modes. Non-registered mode lets you view a downloaded Aadhaar PDF and use a few generic tools. Registered mode, which requires the mobile number linked to your Aadhaar, unlocks the full profile with your photograph, the secure QR code, biometric locking and the request services. It is worth doing the registration properly; the limited mode is not much use.

Setting up your profile

Setup takes about three minutes provided your Aadhaar-linked mobile number is in the phone you are holding, because the app reads the OTP automatically in most cases.

1. Install mAadhaar from the official store listing. Check that the developer is listed as the Unique Identification Authority of India.
2. Choose your language on first launch, then set a four-digit PIN or password. This PIN protects the app itself and is not your Aadhaar OTP.
3. Select the option to register your Aadhaar and enter your 12-digit number along with the captcha shown.
4. Enter the OTP sent to your registered mobile number. The app will not proceed if the SIM is in another handset and you cannot retrieve the code.
5. Your profile loads with your photograph, name, date of birth, address and the secure QR code.
6. Add family members if you want to. The app supports a small number of additional profiles on one device, each requiring its own OTP verification.

If the OTP never arrives, the mobile number on your Aadhaar record is probably not the one you use now. That cannot be fixed inside the app; our guide on how to update your Aadhaar details explains why a mobile number change needs an in-person visit and what to carry.

Biometric lock and unlock

This is the single most valuable feature in the app and the least used. When biometric lock is on, any attempt to authenticate you using fingerprints or iris fails at the UIDAI end. That covers everything from a shop trying to issue a SIM in your name to a fraudulent Aadhaar-enabled payment attempt.

Enable it from the biometric settings inside your profile. Once locked, the state persists until you deliberately unlock it. When you genuinely need a fingerprint authentication, at a bank or a registration office, you unlock temporarily from the app; the unlocked window is short, measured in minutes, after which the lock reinstates itself automatically. Nothing else about your Aadhaar is affected. OTP-based authentication, demographic checks and document downloads continue to work normally.

Why you should turn it on today

Aadhaar-enabled payment fraud generally relies on cloned or lifted fingerprints being used at a micro-ATM. Biometric lock removes that entire attack surface for the cost of one toggle and a two-minute unlock on the rare occasions you need it. If you are already hardening your device, this belongs on the same checklist as the steps in our guide to securing your Android phone.

Virtual ID: sharing without sharing

A Virtual ID is a temporary 16-digit number mapped to your Aadhaar. Anywhere that accepts an Aadhaar number for authentication also accepts a VID, but the recipient never learns your actual number and cannot use the VID to derive it. You can regenerate it whenever you like, which retires the previous one.

Generate or retrieve a VID from the services section of the app. Use it for hotel check-ins, courier verifications, gym memberships and anything else where the counter wants an Aadhaar number written into a register that will sit on a shelf. Reserve the real number for the small set of situations that genuinely require it, such as bank KYC and government scheme enrolment.

Offline eKYC and the secure QR code

Offline eKYC is UIDAI’s answer to the problem of organisations photocopying Aadhaar cards. Instead of handing over a document, you generate a digitally signed data file that contains your name, date of birth, gender, address and photograph, protected by a share code you choose. The verifying party opens it with that code and checks the signature. No connection to UIDAI is needed at their end, and your Aadhaar number is not in the file.

1. Open the offline eKYC or share eKYC option in the app services list.
2. Enter a four-digit share code of your choosing. Remember it, because there is no recovery.
3. Verify with the OTP sent to your registered mobile number.
4. The app produces the file, which you can share over email or a messaging app.
5. Give the share code to the verifier through a separate channel, not in the same message as the file.

The secure QR code on your profile does something similar in a single scan. It encodes signed demographic details and your photograph, so an officer with the official reader can confirm the data has not been tampered with. A photocopy of a card proves nothing; a scanned QR does. The same logic applies to the issued documents you keep in DigiLocker, and our complete DigiLocker guide for India explains how verification works there.

The request services inside the app

Beyond identity features, mAadhaar mirrors most of what the myAadhaar website offers, which is convenient when you are away from a computer.

The TOTP feature deserves a mention because it saves you when you are roaming or in poor coverage. It produces a rotating code inside the app that some UIDAI services accept in place of an SMS OTP. If you like consolidating this sort of thing, several Aadhaar and PAN services also appear inside the government’s UMANG app, alongside EPFO and utility services.

What mAadhaar cannot do

The app cannot change your mobile number or email, cannot update biometrics, and cannot correct your name, date of birth or gender beyond starting the process where the portal allows it. Anything requiring physical verification still means an Aadhaar Seva Kendra appointment. It also cannot tell you where your Aadhaar has been used to obtain services; for telecom connections specifically, the separate government service covered in our guide on how to check the SIM cards registered on your Aadhaar is the right tool.

One more limitation worth knowing: profiles are tied to the device. If you change phones, you register again on the new handset, which needs the OTP once more. Keeping your Aadhaar-linked number active is therefore not optional.

Frequently asked questions

Is the Aadhaar shown in mAadhaar accepted as valid ID?

Yes. The profile inside the app is a digitally signed record and is accepted wherever Aadhaar is accepted. You do not need to carry the printed letter alongside.

Does biometric lock stop me from using Aadhaar at a bank?

Only until you unlock it. Open the app, unlock biometrics, complete the authentication, and the lock returns automatically after a short window.

Can I use mAadhaar without my registered mobile number?

Only in the limited non-registered mode, which shows a previously downloaded PDF. The full profile and all services require an OTP to that number.

How many Aadhaar profiles can one phone hold?

The app supports a handful of family profiles on a single device, each verified separately with its own OTP. The exact number is shown in the app.

Is offline eKYC safer than giving a photocopy?

Considerably. The file is signed, protected by a share code, and does not contain your Aadhaar number, whereas a photocopy can be reused by anyone who handles it.

The bottom line

Treat mAadhaar as a privacy tool rather than a document viewer. Register your profile, turn on biometric lock, and get into the habit of handing over a Virtual ID or an offline eKYC file instead of your Aadhaar number whenever a counter asks for identification. Those three changes cost nothing and remove most of the everyday ways an Aadhaar record gets misused.

The prerequisite for all of it is a live mobile number on your Aadhaar record. If yours is out of date, fix that first at a Seva Kendra, then spend ten minutes setting up the app properly. It is one of the better returns on effort available in Indian digital services, and it pairs well with the broader habits in our guide on how to protect your privacy online.