Before you start
- Signed in to VyajPay.
- Device has biometric hardware enrolled, or has a device PIN/pattern/password.
Step-by-step
Open Settings → Security
From the Settings tab, scroll to the Security section.Toggle App Lock on
The biometric prompt opens (Face ID / Touch ID on iOS, fingerprint or face unlock on Android). Authenticate once to enable.Optional: set a PIN (iOS)
On iOS, you can add a 4-digit numeric PIN as a backup. On Android, your device PIN, pattern, or password is used as the backup.Test the lock
Send VyajPay to the background, then reopen it. The lock screen shows up and the biometric prompt appears automatically.
Android vs iOS
Android
Fingerprint or face unlock, with your device PIN, pattern, or password as the backup. No separate app PIN — your phone’s unlock method covers both.
iOS
Face ID or Touch ID, with an optional 4-digit app PIN as the backup. 'Forgot PIN' switches the unlock back to biometric.
When the lock kicks in
On both platforms, VyajPay locks the moment it goes to the background. A short 2-second buffer stops false locks when you’re jumping between apps quickly.
Frequently asked questions
The moment the app goes to the background. The next time you open VyajPay, the lock screen appears and asks for your biometric or PIN.
You can retry, or fall back to the device PIN/pattern (Android) or the 4-digit PIN you set (iOS).
iOS: tap "Forgot PIN" on the lock screen — it switches you back to biometric unlock. Android: there is no app-level PIN, so unlocking with your device PIN, pattern, or password always works.
App Lock is a sign-in step, not an encryption layer. Your data is already protected by your phone’s built-in encryption and by VyajPay’s secure cloud storage. App Lock stops someone who briefly has your unlocked phone from opening VyajPay.
Yes. The biometric and PIN checks happen on your device. No internet needed.