Biometric authentication lets you sign in to the app using fingerprint or facial recognition instead of a password (on supported devices). To set up biometric authentication:
1. Select Settings from the bottom navigation
2. Under Account Settings, select Security
3. Enable security options by tapping the toggle button and select Biometrics
4. Close the app and reopen it. You will receive a message asking you if you want to use your face or fingerprint recognition instead of your password. Tap OK.