How to Lock Apps and Photos with Face ID: The Complete 2026 Guide

Your iPhone holds an enormous amount of personal information — private conversations, banking apps, sensitive photos, and confidential notes. When you hand your phone to a friend to show them a picture or let a family member use an app, you probably don't want them scrolling through everything else. Fortunately, Apple has quietly added powerful biometric locking features that let you protect individual apps and photos using Face ID.

This guide walks you through exactly how to lock apps and photos with Face ID on iPhone in 2026, including the newer per-app locking introduced in iOS 18, the Hidden Album protections in Photos, and advanced tips for locking Notes, Messages, and third-party apps.

What Does It Mean to Lock Apps and Photos with Face ID?

Locking apps and photos with Face ID means requiring biometric authentication — a face scan — before an app can be opened or specific photos can be viewed. Even if someone has your unlocked iPhone in hand, they cannot access locked content without your face (or your device passcode as a fallback).

This is different from unlocking your phone. Face ID at the device level lets anyone with an unlocked phone see everything. Per-app locking adds a second layer, so each protected app or album requires its own authentication.

What You Can Lock with Face ID in 2026

• Any app on your Home Screen or App Library (iOS 18+)
• The Hidden and Recently Deleted albums in Photos
• Individual Notes in the Notes app
• Messages, WhatsApp, Signal, and Telegram chats
• Banking, wallet, and password manager apps
• Private Browsing tabs in Safari

System Requirements Before You Start

Before you can lock apps and photos with Face ID, make sure your device meets these requirements:

• iPhone model: iPhone X or newer (any iPhone with Face ID hardware)
• iOS version: iOS 18 or later for native per-app locking; iOS 16+ for Hidden Album Face ID
• Face ID enrolled: Settings → Face ID & Passcode → Set Up Face ID
• A device passcode: Required as a fallback authentication method

If you have an older iPhone with Touch ID instead of Face ID, most of these steps still apply — you'll just use your fingerprint instead of your face.

How to Lock Any App with Face ID (iOS 18 and Later)

Starting with iOS 18, Apple introduced a native way to lock individual apps directly from the Home Screen. This works for virtually every app installed on your iPhone, including third-party ones.

Step-by-Step: Locking an App

1. Find the app icon on your Home Screen or in App Library.
2. Touch and hold the app icon until the context menu appears.
3. Tap Require Face ID (or Require Touch ID on older devices).
4. A confirmation prompt appears. Tap Require Face ID again to confirm.
5. Authenticate with Face ID to enable the lock.

From now on, every time someone tries to open that app — even you — Face ID authentication is required. Notifications from the app are also hidden, and its content won't appear in search results, Siri suggestions, or shared sheets.

Step-by-Step: Removing a Face ID Lock from an App

1. Touch and hold the locked app icon.
2. Tap Don't Require Face ID.
3. Authenticate with Face ID to confirm.

Hiding an App Entirely

In the same touch-and-hold menu, you'll also see a Hide and Require Face ID option. This moves the app into a locked Hidden folder at the bottom of App Library. The app disappears from Home Screen, search, and notifications completely. This is ideal for apps you rarely use but want to keep protected — like dating apps, health-tracking apps, or private journals.

How to Lock Photos with Face ID

Apple's Photos app has two built-in albums that are automatically protected by Face ID: the Hidden album and the Recently Deleted album. Any photo you want to keep private can be moved to Hidden.

Step-by-Step: Moving Photos to the Hidden Album

1. Open the Photos app.
2. Find the photo or video you want to lock.
3. Tap the share icon (the square with an upward arrow) or long-press the photo.
4. Scroll down and tap Hide.
5. Confirm by tapping Hide Photo.

The photo is now moved to the Hidden album, which does not appear in your main library, Memories, Featured Photos, or shared albums.

Step-by-Step: Enabling Face ID Lock on the Hidden Album

Face ID protection for the Hidden and Recently Deleted albums is enabled by default in iOS 16 and later, but here's how to verify:

1. Open the Settings app.
2. Scroll down and tap Photos.
3. Toggle Use Face ID to ON.

To view your hidden photos, open Photos → scroll to the Utilities section → tap Hidden → authenticate with Face ID.

Hiding the Hidden Album Itself

If you don't want the Hidden album to appear in Utilities at all, go to Settings → Photos and turn off Show Hidden Album. The album still exists — you just won't see it listed until you re-enable the toggle.

How to Lock Individual Notes with Face ID

The Notes app supports per-note biometric locking, which is perfect for storing passwords, PINs, personal reflections, or financial details.

Setting Up Notes Locking

1. Open Settings → Notes → Password.
2. Tap your account (iCloud or On My iPhone).
3. Choose Use Device Passcode (recommended) or set a custom Notes password.
4. Enable Use Face ID.

Locking an Individual Note

1. Open the note you want to lock.
2. Tap the more (…) button in the top right.
3. Tap Lock.
4. Authenticate with Face ID.

The note remains readable until you close it or tap the lock icon at the top. After that, Face ID is required to view it again.

Locking Third-Party Apps (WhatsApp, Signal, Banking)

Many third-party apps also offer their own Face ID lock settings, sometimes with more granular controls than iOS provides.

WhatsApp

1. Open WhatsApp → Settings → Privacy → Screen Lock.
2. Toggle Require Face ID.
3. Choose how quickly the app locks after being closed (immediately, 1 minute, 15 minutes, or 1 hour).

Signal

1. Open Signal → Settings → Privacy → Screen Lock.
2. Enable the toggle and adjust the inactivity timeout.

Banking and Password Manager Apps

Most major banking apps (Chase, Revolut, Wise, Monzo, etc.) and password managers (1Password, Bitwarden, Dashlane) enable Face ID by default. Check the app's Security or Privacy settings to confirm and adjust auto-lock timing.

Native iOS Lock vs Third-Party App Lock: Which Should You Use?

Feature	Native iOS Lock (iOS 18+)	Third-Party App Lock
Works on any app	✅ Yes	❌ Only if app supports it
Hides notifications	✅ Yes	⚠️ Varies
Hides from search & Siri	✅ Yes	❌ No
Configurable auto-lock timer	❌ Always required	✅ Yes (usually)
Available offline	✅ Yes	✅ Yes
Requires iOS 18+	✅ Yes	❌ No

For most users, the best approach is to combine both — enable Face ID within apps that support it (like WhatsApp and banking apps), and use iOS's native lock for everything else.

Pros and Cons of Locking Apps and Photos with Face ID

Pros

• Strong biometric security: Face ID has a false-match rate of roughly 1 in 1,000,000.
• Fast and frictionless: Authentication happens in under a second.
• Notifications stay private: Locked apps hide preview content by default.
• Content excluded from search: Locked apps and hidden photos don't appear in Spotlight or Siri suggestions.
• No extra apps needed: Everything is built into iOS.

Cons

• Face ID can fail with masks, sunglasses, or poor lighting — though iOS 15.4+ improved mask support.
• Passcode fallback: Anyone with your device passcode can bypass Face ID locks.
• Not a complete privacy solution: Cloud backups may still contain locked content in unencrypted form unless Advanced Data Protection is enabled.
• Third-party apps may not fully honor the lock: Some apps still show content in widgets or Share Sheet previews.

Advanced Privacy Tips Beyond Face ID

Locking apps and photos is only one layer of a good privacy setup. To fully protect your digital life, consider these additional steps:

1. Enable Advanced Data Protection for iCloud

Go to Settings → [Your Name] → iCloud → Advanced Data Protection. This end-to-end encrypts your photos, notes, iCloud backup, and other data so that not even Apple can access them.

2. Use Private Relay in Safari

iCloud+ subscribers can enable Private Relay to hide their IP address and browsing activity from websites and network providers.

3. Turn On Stolen Device Protection

Introduced in iOS 17.3, this feature requires Face ID (with no passcode fallback) for sensitive actions when your iPhone is away from familiar locations — a huge safeguard against thieves who shoulder-surf your passcode.

4. Audit App Permissions Regularly

Visit Settings → Privacy & Security and review which apps have access to your camera, microphone, photos, location, and contacts.

5. Shorten and Track Sensitive Links Safely

If you share links to private documents, invitations, or photo albums, use a privacy-focused shortener that lets you set expiration dates and track clicks without leaking data. Tools like Lunyb allow you to generate short, controllable links so that even the URLs to your private content are protected. For a deeper look at safe link tools, see our 2026 buyer's guide to URL shorteners.

Common Problems and How to Fix Them

Face ID Doesn't Recognize You

Go to Settings → Face ID & Passcode → Set Up an Alternate Appearance. This helps if you frequently wear glasses, hats, or makeup.

"Require Face ID" Option Is Missing

Make sure you're running iOS 18 or later. Check Settings → General → Software Update. Also verify that Face ID is set up under Face ID & Passcode.

Hidden Album Still Appears After Locking

The album is locked, but it may still be visible in Utilities. To fully hide it, disable Show Hidden Album in Settings → Photos.

Locked App Still Shows Notifications

This is a known behavior: some apps push notifications through iOS's global notification system, which may briefly show a preview. Go to Settings → Notifications → [App] → Show Previews → When Unlocked to strengthen this.

Frequently Asked Questions

Can I lock apps with Face ID on iPhones running iOS 17 or earlier?

Native per-app locking requires iOS 18 or later. On older versions, you can only lock specific apps that support Face ID internally (WhatsApp, banking apps, Notes, etc.) or use Screen Time restrictions as a workaround.

Does locking a photo with the Hidden Album delete it from iCloud?

No. Hidden photos still sync to iCloud and appear in the Hidden album across all your devices signed into the same Apple ID. If you want photos to stay only on one device, disable iCloud Photos or move the images to a local encrypted vault.

Can someone bypass Face ID with a photo of me?

No. Face ID uses a 3D depth map created by the TrueDepth camera system, so a flat photo or video cannot unlock it. Identical twins are the primary edge case Apple acknowledges.

What happens if Face ID fails five times?

After five failed attempts, Face ID is disabled and you must enter your device passcode. This is why using a strong, non-obvious passcode is critical — it is the ultimate fallback for every Face ID lock on your phone.

Are locked apps still visible in iCloud backups?

Yes, unless you have enabled Advanced Data Protection. Standard iCloud backups are encrypted in transit and at rest, but Apple holds the keys. Advanced Data Protection removes Apple from the equation and end-to-end encrypts backups.

Final Thoughts

Learning how to lock apps and photos with Face ID is one of the simplest, highest-impact privacy upgrades you can make in 2026. It takes less than two minutes per app, requires no third-party software, and adds a meaningful biometric layer between your private data and anyone who might glance at your unlocked phone.

Combine per-app Face ID locking with Advanced Data Protection, Stolen Device Protection, and disciplined link-sharing habits, and you'll have one of the most private smartphones on the market — right out of the box. For more privacy-focused product reviews and security guides, check out our honest review of Lunyb and our latest Rebrandly review.