How to Lock Apps on Android With a PIN, Password, or Fingerprint

Want to know how to lock apps on Android with a PIN, password, pattern, or fingerprint? The exact steps depend on your phone. Android does not use one […]

Privacy

Want to know how to lock apps on Android with a PIN, password, pattern, or fingerprint? The exact steps depend on your phone. Android does not use one universal “App Lock” menu across every device, but newer Android versions and manufacturers such as Samsung and Xiaomi provide built-in options.

You can also use a dedicated app-lock tool when your phone does not include the type of protection you need. Here are the three main approaches.

How to lock apps on Android with built-in App Lock

Some Android manufacturers include a dedicated App Lock feature that protects individual apps without locking the entire phone again.

On compatible Xiaomi, Redmi, and POCO devices, for example, you can usually open Settings > Apps > App Lock, choose the apps you want to protect, and configure an authentication method. Xiaomi says its Application Lock supports passwords and can also use fingerprint or face unlock on compatible devices. See Xiaomi’s official Application Lock instructions

This is useful for banking apps, messaging services, email, photo galleries, or social networks. Someone may know your phone’s screen PIN or temporarily have your unlocked device, but the protected app still requires another authentication step.

Menu names vary by manufacturer and software version, so search your Settings app for terms such as App Lock, Privacy, or Security if the option is not immediately visible.

Lock apps with Samsung Secure Folder

Samsung Galaxy phones take a slightly different approach. Instead of putting a lock directly over an existing app, Secure Folder creates a separate protected environment where you can keep apps, photos, files, and other private information.

Samsung says Secure Folder can be protected with a PIN, pattern, password, or fingerprint. Apps placed inside remain separated from the phone’s regular storage and require authentication before the protected environment can be accessed. Learn how Samsung Secure Folder protects apps

On supported Galaxy devices, look under Settings > Security and privacy > More security settings > Secure Folder. Availability and menu paths can vary by model and software version.

If you only want to hand someone your phone temporarily, Samsung and Android also support screen pinning. This keeps one app on screen until the device is unpinned with your PIN, pattern, or password. It is useful when lending your phone, but it is not the same as permanently password-protecting individual apps. See Google’s guide to app pinning

Use Android Private Space for sensitive apps

Starting with Android 15, Google added Private Space, which creates a separate area for apps you do not want accessible from your main profile.

Private Space can use a dedicated lock, and Google describes it as a locked area that requires a password or biometric authentication to open. When the space is locked, its apps can also be hidden from several parts of the operating system. Read Google’s Private Space guidance

This makes Private Space particularly useful for banking, healthcare, work, dating, or social apps containing personal information.

If your phone does not provide the app-lock setup you want, a dedicated security tool can add another barrier. dfndr security’s Applock lets you choose specific apps to protect with an additional password or pattern, with biometric authentication available where supported by the device and version. That means someone using your unlocked phone still encounters another verification step before opening protected apps. PSafe’s current support documentation explains how to select individual apps and activate Applock protection. See how dfndr security Applock worksCan you lock apps with a fingerprint on Android?

Yes, but fingerprint app lock depends on the device and the method you use.

Xiaomi supports fingerprint unlocking for its Application Lock on compatible devices, while Samsung Secure Folder can also use registered fingerprints. Private Space can use biometric authentication on supported Android devices.

Some individual apps, especially banking and payment apps, also include their own biometric login. Motorola notes that third-party apps must specifically support fingerprint recognition before the phone’s fingerprint sensor can be used to sign in to them. Read Motorola’s fingerprint security guidance

Which Android apps should you lock?

Prioritize apps that contain information you would not want another person to access if your unlocked phone were briefly out of your hands.

That may include messaging and social media apps, banking and payment apps, email, cloud storage, password managers, photo galleries, healthcare apps, or work accounts.

An app lock should complement—not replace—a strong screen lock. Keep your Android device protected with a good PIN or password, register only trusted fingerprints, keep the system updated, and review app permissions periodically.

Frequently Asked Questions

Can I lock individual apps on Android?

Yes. Depending on your device, you can use a manufacturer’s App Lock, Samsung Secure Folder, Android Private Space, an app’s own biometric security, or a trusted app-lock tool.

Does Android have a built-in App Lock?

Not every Android phone has the same built-in App Lock feature. Some manufacturers provide one directly, while Android 15 and later offer Private Space as a broader privacy option.

How do I lock apps with a fingerprint?

First register your fingerprint under your phone’s security settings. Then enable fingerprint authentication inside a supported App Lock feature, Secure Folder, Private Space, or individual app.

Is Private Space the same as App Lock?

No. App Lock generally places authentication directly in front of selected apps. Private Space creates a separate protected environment where sensitive apps can be installed and hidden.

Conclusion

The best way to lock apps on Android depends on your phone. Built-in App Lock is usually the simplest option when available, Samsung users can rely on Secure Folder, and Android 15 or later offers Private Space for a separate protected environment.

Whichever method you choose, combine app locking with a strong device PIN or password, fingerprint security, software updates, and regular privacy checks.