HomeHelpPrivacy & backup

Free· iPhone & Android · about 1 min

Lock the app

Keep passports, leases and pay slips private even if someone borrows your phone.

  1. Open Security settings

    Go to Settings → Security.

  2. Turn on Screen lock

    Switch on Screen lock and Set a 4-digit PIN — you enter it twice.

  3. Add biometrics

    Turn on Face ID / fingerprint to unlock without typing your PIN (set it up in your phone's settings first).

  4. Choose when it locks

    Lock after: Immediately, 1 minute or 5 minutes. Use Change PIN any time.

More screens

Enter your PIN
Enter your PIN

Tips

  • If you forget the PIN, you need to reinstall the app, which removes the documents stored in it. Export a backup first.
  • If Face ID or fingerprint fails, you can always enter your PIN.
Free or Pro? App lock is free — PIN, Face ID or fingerprint, on every page, with no time limit. Password-protecting an exported PDF is part of Pro.

See it in a real situation: Offline document scanner: scan and OCR privately on your phone.

Related guides

Security settings with Screen lock and Face ID on
Tap to enlarge
Zency Scan is coming soon to the App Store and Google Play. Free to scan and export; Lifetime Pro is $7.99 once.