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

Your iPhone holds an incredible amount of personal information — from private conversations and banking apps to intimate photos and confidential work documents. While the Face ID lock on your device provides a strong first layer of protection, anyone who borrows your unlocked phone can potentially access sensitive apps and pictures. Fortunately, Apple has built powerful tools directly into iOS that let you lock individual apps and photos with Face ID, adding an extra checkpoint before anyone can view your most private content.

This comprehensive guide walks you through every method available in 2026 for securing your apps and photos with Face ID, including native iOS features, hidden album protection, and third-party solutions. Whether you're running iOS 18 or a slightly older version, you'll find step-by-step instructions to keep your data safe.

Why Lock Individual Apps and Photos?

Locking individual apps and photos with Face ID adds a second authentication layer beyond your device's lock screen. Even if someone gains access to your unlocked phone — whether a curious friend, a nosy family member, or a thief who saw your passcode — they still can't open your protected content without your face.

Common scenarios where per-app locking matters include:

• Handing your phone to a child to play a game while keeping banking apps private
• Showing vacation photos to a coworker without exposing your entire camera roll
• Protecting messaging apps from being read if your phone is briefly unattended
• Securing health data, journals, or password managers with a second checkpoint
• Preventing accidental app deletion or in-app purchases by others

Native iOS Face ID App Locking (iOS 18 and Later)

Starting with iOS 18, Apple introduced a built-in feature that lets you lock virtually any app on your iPhone with Face ID, Touch ID, or your passcode. This eliminates the need for third-party workarounds and works with both Apple's own apps and third-party applications.

How to Lock Any App with Face ID

1. Unlock your iPhone and go to the Home Screen or App Library.
2. Touch and hold the app icon you want to lock until a context menu appears.
3. Tap Require Face ID (or Require Touch ID on supported devices).
4. A confirmation prompt will appear — tap Require Face ID again to confirm.
5. Authenticate with Face ID to complete the setup.

From now on, every time you or anyone else tries to open that app, Face ID authentication will be required. If authentication fails or is canceled, the app won't open. Even more importantly, notifications from that app will be hidden from the Lock Screen, and its contents won't appear in search results or Siri suggestions.

How to Hide Apps Entirely

iOS 18 also lets you move sensitive apps to a hidden folder that requires Face ID to access. Here's how:

1. Long-press the app icon on your Home Screen.
2. Tap Require Face ID.
3. In the confirmation menu, choose Hide and Require Face ID.
4. Confirm by tapping Hide App.

Hidden apps disappear from your Home Screen, App Library search, notifications, and system settings. To find them, scroll to the bottom of your App Library — you'll see a locked Hidden folder. Face ID unlocks the folder, revealing your hidden apps.

How to Unlock or Unhide Apps

To reverse the process:

1. Long-press the locked or hidden app.
2. Tap Don't Require Face ID or Unhide.
3. Authenticate with Face ID to confirm.

Locking the Photos App with Face ID

Photos are among the most sensitive content on any phone. Apple offers several ways to protect them with Face ID.

Method 1: Lock the Entire Photos App

Using the same iOS 18 method described above, you can require Face ID to open the entire Photos app. Long-press the Photos icon, tap Require Face ID, and confirm. This is the strongest protection because nobody can browse any of your images without authenticating.

Method 2: Lock the Hidden Album

The Photos app has a built-in Hidden album that's locked by Face ID by default in iOS 16 and later. To move photos into it:

1. Open the Photos app and select the photo or video you want to hide.
2. Tap the More button (three dots in the top-right corner).
3. Tap Hide, then confirm.
4. The photo moves to the Hidden album, which is accessible only via Face ID.

To view hidden photos, scroll to the bottom of the Photos tab, tap Hidden under Utilities, and authenticate with Face ID.

Method 3: Lock the Recently Deleted Album

Similarly, the Recently Deleted album is automatically locked with Face ID. Deleted photos remain there for 30 days, so make sure to check this album periodically if you want to permanently remove sensitive images.

Verify Face ID Protection Is Enabled

To confirm your Hidden and Recently Deleted albums require authentication:

1. Open Settings > Apps > Photos.
2. Scroll down and make sure Use Face ID is toggled on.

Locking Notes with Face ID

The Notes app has offered per-note locking since iOS 9, and it's ideal for storing sensitive text like Wi-Fi passwords, journal entries, or account recovery codes.

1. Open the Notes app and select the note you want to lock.
2. Tap the More button (three dots).
3. Tap Lock.
4. If this is your first time, choose whether to use your device passcode or a separate Notes password. Using your device passcode enables Face ID unlock automatically.

Locked notes show only the title in your notes list. Tap one, then use Face ID to reveal the contents.

Comparison: Native iOS vs. Third-Party App Lockers

Before iOS 18, users often relied on Screen Time restrictions or third-party tools to lock apps. Here's how the options stack up today:

The clear winner in 2026 is the native iOS 18 method — it's free, secure, deeply integrated, and doesn't require trusting a third-party developer with access to your data.

Using Screen Time to Lock Apps (Alternative Method)

If you're still on iOS 17 or earlier, you can use Screen Time to require a passcode before opening specific apps. This isn't true Face ID locking, but it adds a barrier.

1. Go to Settings > Screen Time.
2. Tap App Limits, then Add Limit.
3. Select the app category or individual app you want to restrict.
4. Set the daily time limit to 1 minute.
5. Enable Block at End of Limit.
6. Set a Screen Time passcode under Settings > Screen Time > Use Screen Time Passcode.

Once the daily minute is used up (essentially immediately), the app will require your Screen Time passcode to reopen. It's not seamless with Face ID, but it works as a workaround on older devices.

Best Practices for App and Photo Privacy

Locking apps is only one piece of a broader privacy strategy. Consider these additional steps:

1. Use a Strong Device Passcode

Face ID is only as secure as the passcode behind it. Use a six-digit or alphanumeric passcode rather than a four-digit PIN. Anyone who knows your passcode can add their face to Face ID and defeat all your app locks.

2. Disable Lock Screen Previews

Go to Settings > Notifications > Show Previews and choose When Unlocked. This prevents messages and app content from appearing on your Lock Screen when your phone is on a desk.

3. Turn On Stolen Device Protection

Introduced in iOS 17.3 and expanded in later versions, Stolen Device Protection adds a delay and biometric requirement for critical changes when your phone is away from familiar locations. Enable it under Settings > Face ID & Passcode.

4. Be Careful with Shared Links

When you share photos or files via link, anyone with the URL can access them. Use a trusted link management platform like Lunyb to create shortened, trackable links with expiration dates and click limits — a simple way to keep shared content from spreading beyond its intended audience. You can read our honest review of Lunyb to learn more about how it handles privacy.

5. Review App Permissions Regularly

Under Settings > Privacy & Security, check which apps have access to Photos, Contacts, Location, and Microphone. Revoke permissions from apps that don't genuinely need them, and use the Selected Photos option to give apps access only to specific images.

What About Android Users?

While this guide focuses on Face ID (an Apple-specific feature), Android users have similar options through App Pinning, Secure Folder (Samsung), Private Space (Android 15+), and manufacturer-specific app lockers that use fingerprint or face recognition. The principles remain the same: add a second authentication layer to your most sensitive content.

Troubleshooting Common Issues

Face ID Prompt Doesn't Appear When I Open a Locked App

Make sure Face ID is enabled system-wide under Settings > Face ID & Passcode. Also verify that iPhone Unlock and Other Apps toggles are on.

I Don't See the "Require Face ID" Option

This feature requires iOS 18 or later. Check Settings > General > Software Update to confirm you're running the latest version. Some carrier or region-specific builds may have delayed rollouts.

Face ID Fails Repeatedly

Clean the TrueDepth camera at the top of your screen. Re-enroll your face under Settings > Face ID & Passcode > Reset Face ID. If problems persist, set up an alternate appearance for different lighting conditions or accessories.

I Forgot Which Apps I Hid

Open the App Library, scroll to the bottom, and tap the Hidden folder. Authenticate with Face ID to see all your hidden apps in one place.

Frequently Asked Questions

Can I lock apps with Face ID on any iPhone?

Native app locking with Face ID requires iOS 18 or later and a Face ID–capable iPhone (iPhone X and newer). Older devices with Touch ID can use the same feature with fingerprint authentication instead.

Does locking an app hide its notifications?

Yes. When you require Face ID for an app, its notifications are hidden from the Lock Screen and Notification Center. The notification will still arrive, but the content and app name are obscured until you authenticate.

Can I lock the Photos app but still take pictures with the Camera?

Absolutely. Locking the Photos app doesn't affect the Camera app. You can still take photos and videos normally — they'll simply be stored behind Face ID protection when you go to view them in Photos.

What happens to locked apps when someone knows my passcode?

If someone knows your device passcode, they can enter it as a fallback when Face ID fails, granting access to locked apps. For maximum security, keep your passcode private and enable Stolen Device Protection, which adds extra biometric requirements for sensitive actions.

Are locked photos still backed up to iCloud?

Yes. Hidden and locked photos are still synced to iCloud Photos if you have that feature enabled. They remain hidden across your devices as long as you're signed into the same Apple ID, and iCloud backups themselves are encrypted.

Final Thoughts

Locking apps and photos with Face ID transforms your iPhone from a single-point-of-failure device into a layered fortress for your most sensitive information. With iOS 18's built-in Require Face ID and Hide App features, you no longer need to trust third-party lockers or clunky workarounds. Combine per-app locking with a strong passcode, careful notification settings, and mindful sharing habits — using tools like Lunyb for private link sharing — and you'll have a genuinely private mobile experience.

Take five minutes today to identify the three or four apps that hold your most sensitive data — banking, messaging, photos, notes — and lock them with Face ID. It's the simplest, highest-impact privacy upgrade available in 2026.