If you share your phone with family or just want an extra layer of privacy on your banking and messaging apps, learning how to lock apps on Android is worth ten minutes of your time. Before you download anything, it is worth knowing that one of the most commonly recommended app lockers online, Norton App Lock, was actually discontinued and pulled from the Play Store back in 2024, so several guides are pointing readers toward a dead end. This guide covers what genuinely works right now in 2026, starting with your phone’s own built in settings, then moving through screen pinning, family profiles, and the third party options still actively maintained. You will also learn about a couple of real weak points nobody usually mentions, like what happens if a family member’s fingerprint is already saved on your phone. By the end you will know exactly how to lock apps on Android in a way that actually holds up day to day, not just on paper.
Quick Answer
Short on time? Here is the fast version.
- Fastest built in method: Your phone’s native App Lock or Secure Folder setting, no download required.
- Best for temporary sharing: Screen Pinning, locks the phone to one app for a few minutes.
- Best for a fully separate space: Private Space on Pixel and stock Android, or Secure Folder on Samsung.
- Best if your phone has no built in option: AppLock by DoMobile or Smart AppLock, both still actively maintained.
- Avoid: Norton App Lock, discontinued in 2024 and no longer downloadable from the Play Store.
How to Lock Apps on Android
Most Android phones today can lock individual apps without installing anything extra, since manufacturers have built this directly into their settings menus over the past few years. The exact path depends on your phone’s brand, but it almost always lives somewhere under Settings, inside Security, Privacy, or Biometrics. If your phone genuinely has no built in option, a handful of well maintained third party apps still cover the gap, and screen pinning offers a quick built in fallback for short term sharing. The sections below walk through each real method for how to lock apps on Android, starting with the one built into your specific phone.
Check This Before You Install Anything
Two things are worth checking before you set up any app lock, since they quietly undermine the whole point if ignored.
- Norton App Lock is discontinued. Norton officially retired the app and removed it from the Google Play Store on June 11, 2024, with no replacement offered. If an article or download link still points you toward it, that content has not been updated in a while, and installing an old APK from outside the Play Store carries real security risk.
- Check whose fingerprints are already saved on your phone. Go to your security or biometrics settings and look at the list of enrolled fingerprints. If you ever added a partner’s or child’s finger for convenience, every fingerprint based app lock you set up afterward is already bypassable by them, since the phone cannot tell whose finger it is scanning.
Both of these take two minutes to check and prevent a false sense of security later.
Lock Apps Using Your Phone’s Built In Settings
Manufacturer specific app lock features are the fastest option, since there is nothing to download and no extra battery drain from a background app.
- Samsung uses Secure Folder, an encrypted space powered by Samsung Knox. Go to Settings, then Biometrics and Security, then Secure Folder, sign in with your Samsung account, choose a PIN, pattern, or biometric lock, then open the folder and tap Add Apps. Newer Samsung phones also offer a simpler per app lock under Settings, Advanced Features, App Lock.
- Xiaomi and Redmi phones running MIUI or HyperOS have App Lock built directly into Settings, then Apps, then App Lock. Turn it on, set a PIN or pattern, then choose which apps to protect and enable fingerprint unlock if your phone supports it.
- OnePlus offers App Locker under Settings, Privacy, App Lock. Set a PIN, toggle on the apps you want protected, and turn on Hide Notification Content for the same apps so previews do not leak information on the lock screen.
- Oppo and Realme phones use the same basic path, Settings, Privacy, App Lock, where you set a privacy password separate from your phone unlock code and choose apps to protect.
- Pixel and other stock Android phones running Android 15 or newer include Private Space, found under Settings, Security and Privacy, Private Space. This creates a genuinely separate area with its own PIN and its own Google account, so apps inside it are invisible until unlocked, not just password gated. Google has also been rolling out a more direct App Lock option under Settings, Security and Privacy, App Security on some devices.
If your phone brand is not listed above, search your settings app directly for the word lock, since most manufacturers include some version of this feature even if the menu name differs slightly.
Screen Pinning for Quick Temporary Sharing
Screen Pinning is a different tool from an app lock, and it is worth understanding the difference before relying on it. Instead of protecting an app with a password, it locks your entire phone to a single open app until you manually unpin it.
- Open Settings and search for Screen Pinning, or find it under Security and Privacy on newer versions of Android.
- Turn it on, and enable Ask for PIN Before Unpinning so a code is required to exit.
- Open the app you want to hand over, tap the Overview or Recent Apps button, then tap the app’s icon and select Pin.
- To exit, press and hold the Back and Overview buttons together, or swipe up and hold depending on your phone’s gesture settings, then enter your PIN.
This is the fastest option for handing your phone to a child for a video or a stranger to make a quick call, taking about ten seconds to set up each time. Its real limitation is that it only holds one app at a time, so it is not useful if someone needs to move between two or three apps during the same session.
Create a Separate Profile Instead of Locking Everything
If you share a phone regularly rather than occasionally, locking individual apps one by one becomes tedious fast, and a separate profile solves the underlying problem instead.
- Guest or secondary user profiles, found under Settings, System, Multiple Users, give another person their own space with no access to your installed apps or data at all. They can install their own apps and sign into their own accounts without ever seeing yours.
- Work profiles, available natively on many Android phones or through an app like Shelter, take this further by letting you pause a group of apps entirely rather than just password protecting them. When paused, those apps disappear from the app drawer and stop running in the background until you unpause them, which is harder to bypass than a simple PIN since there is nothing visible to attack.
Switching profiles takes a few extra seconds compared to entering a PIN, so this method works best if you are genuinely willing to keep using it. If flipping between profiles feels like a hassle after a week, you will likely stop, and a simpler per app lock may suit you better long term.
Third Party App Lockers If Your Phone Has None
If your phone genuinely lacks a built in option, a handful of apps still handle this reliably.
- AppLock by DoMobile supports PIN, pattern, fingerprint, and face recognition, and includes an intruder selfie feature that photographs anyone who enters the wrong code.
- Smart AppLock offers similar core functionality with a simpler interface, useful if you find AppLock’s extra features unnecessary.
- AppLock Fingerprint by SpSoft adds a fake error screen option that makes a locked app appear broken rather than obviously password protected, which can deter casual snooping more effectively than a visible lock screen.
Avoid Norton App Lock specifically, since it has not received updates since mid 2024 and can no longer be downloaded through the official Play Store. When setting up any third party locker, grant only the permissions it actually needs, such as display over other apps and usage access, and avoid anything asking for more than that.
PIN, Pattern, or Biometric: Which Is Actually More Secure
Each lock type has a real weakness worth knowing before you pick one.
- A PIN is generally the most reliable option, since it leaves no visible trace and cannot be guessed from smudges on the screen.
- A pattern lock can sometimes be reconstructed from finger smudges left on the display, particularly on phones with glossy screens, making it slightly weaker for shared or frequently handled devices.
- Biometric locks are convenient but only as secure as who else has a fingerprint or face enrolled on the device, which circles back to the fingerprint check mentioned earlier in this guide.
For genuinely sensitive apps, a PIN combined with fingerprint as a convenience option, rather than fingerprint alone, offers the best balance.
Common Problems and How to Avoid Them
A few practical issues come up often enough to address directly.
- Third party lockers stop working randomly. This usually happens because Android’s battery optimization feature puts the app to sleep in the background, silently disabling the lock without any warning. Go into your phone’s battery settings and disable optimization specifically for your app locker to prevent this.
- Notification previews reveal content even with an app locked. Locking an app does not automatically hide its notification previews. Check Settings, Notifications, and your specific app, then enable Hide Sensitive Content or a similar option so locked apps do not leak information on your lock screen.
- A locked app reappears unprotected after a phone restart. Some third party lockers need to fully initialize after a reboot before protection kicks back in. Open the locker app once after restarting your phone to confirm it is active again.
How to Choose the Right Method for You
The right approach depends on how often you share your phone and with whom.
- For occasional sharing, like handing your phone to a child for a few minutes, Screen Pinning is fastest and requires no setup in advance.
- For a few sensitive apps on a phone only you use, your phone’s built in App Lock or Secure Folder is the cleanest option with no extra app running in the background.
- For a phone shared regularly with a partner, roommate, or older child, a separate Guest profile or Work Profile avoids the daily friction of locking and unlocking individual apps.
- For a phone with no built in lock feature at all, AppLock by DoMobile or Smart AppLock cover the gap reliably.
Frequently Asked Questions
How do I lock apps on Android without a third party app?
Most Android phones include a native option. Samsung uses Secure Folder, Xiaomi and Redmi use App Lock under Settings and Apps, and Pixel or stock Android phones on Android 15 or newer include Private Space, all without needing to install anything extra.
Is Norton App Lock still available?
No, Norton officially discontinued the app and removed it from the Google Play Store on June 11, 2024. There is no official replacement, and installing it from outside the Play Store now is not recommended.
Can someone bypass a fingerprint app lock?
Yes, if their fingerprint is already saved on the same phone. Check your security settings for a list of enrolled fingerprints, and remove any that do not belong to you if you plan to rely on fingerprint locking for privacy.
What is the difference between locking an app and hiding an app?
Locking an app keeps it visible but requires a code to open it. Hiding an app removes it from the app drawer entirely so it does not appear at all, which some launchers and built in features like Private Space support separately from simple locking.
Does Screen Pinning work the same as an app lock?
No. Screen Pinning temporarily restricts the whole phone to one open app until you manually unpin it, while an app lock protects a specific app with its own password every time it is opened, even during normal daily use.
Why does my app lock stop working after a while?
This is usually caused by Android’s battery optimization putting the locker app to sleep in the background. Disable battery optimization specifically for that app in your phone’s battery settings to keep the lock active consistently.
Conclusion
Learning how to lock apps on Android does not require a third party download for most people, since built in options like Secure Folder, native App Lock, and Private Space now cover most phones released in the last couple of years. Screen Pinning handles quick, occasional sharing well, while a separate Guest or Work Profile is the more durable choice if you hand your phone to the same person regularly. If your phone genuinely lacks any built in option, AppLock by DoMobile and Smart AppLock remain reliable choices, just steer clear of Norton App Lock, since it has been discontinued since 2024. Check which fingerprints are saved on your device, hide notification previews for sensitive apps, and disable battery optimization for any third party locker you install, and your app lock setup will actually hold up day to day rather than just looking secure on the surface.