
Locking apps on your iPhone can be a game-changer for your security. You can use the Screen Time feature to lock specific apps after a set period of inactivity.
To start, go to Settings > Screen Time > Turn On Screen Time. From there, you can set a time limit for each app and enable the "Block at Downtime" feature.
Setting up Screen Time is a straightforward process, and it's a great way to keep your apps locked and secure.
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How to
If you want to lock an app on your iPhone, you can do so by requiring Face ID, Touch ID, or your passcode to open the app. Some apps, like Calculator and Clock, can't be locked.
To lock an app, go to the Home Screen, locate the app you want to lock, and touch and hold the app icon until the quick actions menu opens. Then, tap Require Face ID (or Touch ID or Passcode) and authenticate using Face ID (or Touch ID or a passcode).
You can also lock an app using Guided Access on iPhone 5 and later models. This feature is great for parents who want to let their kids use a specific app without accessing other apps.
To enable Guided Access, go to Settings, then Accessibility, and tap Guided Access. Then, tap the toggle switch at the top to enable this feature and set a passcode. You can also toggle the Face ID feature to turn Guided Access off when you use Face ID to unlock the phone.
Here are the steps to lock an app using Guided Access:
- Go to Settings, then Accessibility.
- Tap Guided Access.
- Tap the toggle switch at the top to enable this feature.
- Select Passcode Settings and tap Set Guided Access Passcode.
- Enter the passcode twice to lock it in.
- Open the app you want to allow someone to use.
- Triple-click the side button.
- Tap Guided Access and then Start.
Alternative Methods
If you're looking for alternative methods to lock apps on your iPhone, you can use the Screen Time feature to set limits and restrictions on individual apps.
By enabling Screen Time, you can block access to certain apps during specific times of the day, helping you stay focused and avoid distractions.
Another option is to use a third-party app locker, such as Guided Access, which allows you to lock specific apps and set a passcode to access them.
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Hidden Feature

If you're looking for an alternative to traditional app locking methods, you might want to consider using the Hidden Apps feature in iOS 18. This feature sends certain apps to a locked folder, making it much harder for others to find and access them.
To access the hidden app, you'll need to use Face ID or the device passcode, which adds an extra layer of security. The hidden app is then stored in a folder that can only be accessed from the App Library.
You can choose which apps to hide, but keep in mind that this method doesn't lock the app itself, just makes it harder to find.
The process is simple: go to the App Library, tap on the folder icon, and enter your Face ID or passcode to access the hidden app.
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Alternative Methods
If you're on an iPhone with an earlier iOS version, like iOS 17 or below, you can't use the new "Lock" or "Hide" commands. However, you can still protect your apps using three built-in tools.

One of these tools is Downtime, which allows you to schedule time away from your screen, where only selected apps are available. This can be a great way to limit your own app usage or set boundaries for family members.
You can also use Content and Privacy Restrictions to control access to certain apps and settings. This feature is useful for parental controls, but it can also be used to lock down your own device.
Another option is to use Family Sharing, which allows parents to remotely monitor and set limits on their child's device. While this feature is designed for families, it can also be used to lock down your own device if you're sharing it with others.
If you need to lock specific apps on your iPhone with an earlier iOS version, you can use the steps outlined in the previous section to mimic the protection offered by the "Lock" or "Hide" commands.
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Understanding Locking vs Hiding
Locking and hiding an app are two different ways to keep your personal data safe on your iPhone. Locking leaves the icon visible on your home screen, but requires Face ID, Touch ID, or a passcode to access the app's contents.
You can think of locking as putting a digital padlock on an app icon that's still visible on your home screen. The app is still accessible, but its contents are protected.
Some apps, like Calculator and Camera, can't be locked, so you won't be able to lock those.
To lock an app, touch and hold the app icon until the quick actions menu appears, then tap "Require Face ID" (or "Require Touch ID" or "Require passcode"). Authenticate once, and from now on, every tap will bring up Face ID.
Here's a step-by-step guide to locking an app:
- Touch and hold the app icon until the quick-actions menu appears.
- Tap “Require Face ID.” (On older hardware, the wording might differ: “Require Touch ID” or “Require passcode.”)
- Authenticate once. From now on, every tap brings up Face ID.
Locking keeps data private, but hiding takes it a step further by removing the app icon from your home screen, Spotlight search, and the app library.
Data Security
Data Security is a top priority when locking apps on your iPhone. Relying solely on a new lock icon is insufficient.
To add an extra layer of security, activate Face ID or Touch ID inside every banking, health, or mail app that supports internal biometric gates. This will ensure that sensitive information is protected.
Setting "Show previews" to "Never" in "Notification settings" will prevent message content from being exposed on the lock screen. This is a simple yet effective way to keep your data secure.
Replace your six numeric digits with a longer alphanumeric device passcode for added security. This will make it more difficult for others to access your phone.
Relocate every password, passkey, or credit card detail to an encrypted vault such as NordPass password manager. This will keep your sensitive information safe and organized.
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Using Face ID
You can lock an app on iPhone using Face ID or Touch ID by going to Settings and tapping Face ID & Passcode. Enter your passcode to proceed.
Face ID offers a simple yet powerful way to protect your apps and maintain privacy on your iPhone. To lock an app using Face ID, toggle each of the apps to lock them using Face ID at the top section of the Face ID & Passcode settings.
For phones that have Touch ID, you can use the same method to turn on Touch ID for privacy protection. To do this, open Settings and tap Touch ID & Passcode, then enter your passcode.
Some apps, like WhatsApp and banking apps, let you lock them with Face ID or Touch ID for an extra layer of security. This feature ensures that even if someone gains access to your phone, they won’t be able to open these protected apps without your biometric authentication.
To enable this feature on WhatsApp, open WhatsApp and tap Settings in the bottom-right corner, then go to Privacy, scroll down and tap App Lock, toggle on Require Face ID or Require Touch ID, and optionally set a time limit for how soon the app will require Face ID or Touch ID after it’s been closed.
Here are the steps to lock an app using Face ID or Touch ID:
- Go to Settings and tap Face ID & Passcode (or Touch ID & Passcode for Touch ID).
- Enter your passcode to proceed.
- Toggle each of the apps to lock them using Face ID (or Touch ID).
- Tap Other Apps and toggle each one if you want to allow Face ID (or Touch ID) to open them.
Guided Access
Guided Access is a feature on iPhone that allows you to lock your device to a single app, preventing you from switching to other apps. This can be super helpful if you're giving your phone to a child or want to stay focused on one task.
To use Guided Access, you'll need to enable it by going to Settings, then Accessibility, and tapping Guided Access. From there, you can select the app you want to allow access to and set a passcode to lock it in.
The key features of Guided Access include single app mode, which locks your iPhone to one specific app, and the ability to disable certain screen areas or button functions. You can also set a time limit for how long Guided Access will be active, which can be a lifesaver if you're trying to stay on track.
Using Screen Time
Using Screen Time is a great way to lock apps on your iPhone and keep them safe from prying eyes. You can set a time limit for specific apps, and once the limit is reached, you'll need a screen time passcode to continue using the locked app.
To use Screen Time, go to Settings, locate Screen Time, and tap it. Tap on App Limits, then Add Limit, and choose the app you want to lock. You can select individual apps or choose all apps and categories.
If you want to lock an app and require a password to open it, you can do so by selecting the app and tapping Next. Then, select the time limit for the app and enable a password to open it. You can also choose particular days on which the limit will work.
Here are the steps to lock an app using Screen Time:
- Go to Settings, locate Screen Time, and tap it.
- Tap on App Limits, then Add Limit.
- Select the app you want to lock and tap Next.
- Set the time limit for the app and enable a password to open it.
- Choose particular days on which the limit will work and tap Add.
With Screen Time, you can also see how much time you spend on apps, websites, and your phone overall, and set daily and weekly reports to track your usage.
Guided Access
Guided Access is an iPhone feature that helps you stay focused on one app by blocking access to other apps or settings. This feature is great for parents who want to allow young children to play games without messing anything else up.
To enable Guided Access, go to Settings, then Accessibility, and tap Guided Access. You can also toggle the Face ID feature to turn Guided Access off when you use Face ID to unlock the phone once it is returned to you.
With Guided Access, you can lock your iPhone to one specific app, preventing you from switching to other apps. You can also disable certain parts of the screen so they don’t respond to touch, useful for apps where only certain buttons should be accessible.
Some of the key features of Guided Access include:
- Single app mode: Locks your iPhone to one specific app, preventing you from switching to other apps.
- Disable screen areas: You can disable certain parts of the screen so they don’t respond to touch.
- Limit button functions: You can turn off hardware buttons like volume controls or the side button and disable motion.
- Time limits: You can set a time limit for how long Guided Access will be active.
To end Guided Access, you can triple-click the side button again or use Face ID if you set it up during the enabling process.
Other Features and Tips
Guided Access is a powerful feature that allows you to lock your iPhone to a single app, preventing you from switching to other apps. This feature is particularly useful for parents, educators, or individuals who need to restrict access to certain apps for a specific period.
You can disable certain parts of the screen, making it easier to use apps that have complex interfaces. For example, if you're using a music app and only want to allow the user to access the play button, you can disable the rest of the screen.
One of the most useful features of Guided Access is the ability to limit button functions. This means you can turn off hardware buttons like volume controls or the side button, and even disable motion, like shaking the device.
To add an extra layer of security, you can set a time limit for how long Guided Access will be active. This means you can lock an app for a specific period, say during a lesson or a meeting, and it will automatically turn off when the time is up.
Here are some key settings to consider when using Guided Access:
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