In QR Code Reader & Generator, open Settings → Security → Passcode Lock to protect your scan history and saved QR codes behind Face ID, Touch ID, or a 4-digit passcode.
Step-by-Step: Enable Face ID & Passcode Lock
- Open Settings in QR Code Reader & Generator
Tap the Settings tab in the bottom-right corner of the app.
- Tap 'Passcode Lock' under Security
In the Security section, tap 'Passcode Lock' and toggle 'Turn Passcode On'.
- Set your 4-digit passcode and enable Face ID / Touch ID
Enter your 4-digit passcode and toggle Face ID (or Touch ID) ON for instant biometric unlocking.
Can I also disable scan history completely?
Yes. If you prefer not to store scanned codes at all, go to Settings → Reader → Keep History and toggle it OFF, or swipe to delete individual items on the Home tab.
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