How to Lock Apps on Android: Every Built-In Option
Handing your phone to someone is a small act of trust with a surprisingly large surface area. A child wants to watch a video, a colleague wants to check a map, a friend wants to see a photo — and in each case the same phone also holds your messages, your banking app, your email, and your photo gallery. Most people solve this by hovering anxiously, or by saying no when they would rather say yes. Locking individual apps is the calmer alternative: it lets you hand the phone over while keeping the private parts private. The catch, on Android, is that there is no single lock that works the same way on every phone, so the right method depends on what phone you have and what you are actually trying to protect.
The Honest Picture First: No Universal App Lock on Stock Android
It helps to start with what stock Android does not offer, because a lot of advice online pretends otherwise. On a typical Pixel or a phone running close-to-stock Android, there is no built-in setting that puts a PIN or fingerprint lock on a single app icon in the way some other systems do. Google has been working in this direction — reports of Android 17’s quarterly beta builds mention a returning App Lock feature — but beta features are not the same as features on your phone today, and installing a beta just to get one lock is a poor trade for most people. The practical options below are the ones available now, on phones people actually own.
That sounds like bad news, but it is less limiting than it seems. Android does offer several built-in ways to separate private apps from everyday use, and for most situations one of them fits well. The trick is matching the method to the situation, rather than looking for one perfect lock and being disappointed when it does not exist. The sections below work through the options from the most thorough to the lightest, so you can stop at the first one that covers what you need.
Option 1: Private Space — The Thorough Answer on Newer Android
Private Space, available on Android 15 and later, is the closest thing stock Android has to a proper app lock, and it works by giving you a separate, locked section of your phone rather than locking apps one by one. Apps you move into Private Space are hidden from the main app list, their notifications are hidden too, and the whole space stays locked until you unlock it with a fingerprint, PIN, or pattern. When it is locked, someone browsing your phone will not even see that those apps exist, which is a stronger form of privacy than a lock screen on an app icon.
The trade-off is that Private Space is a separate space, not a per-app switch. An app in Private Space runs as a separate installation, with its own data, so moving a messaging app there means setting it up again in that space rather than simply locking the version you already use. For apps you want fully out of sight — a banking app, a private messaging app, a gallery — that separation is exactly the point. For an app you open twenty times a day, the extra unlock step can get tiresome, and a lighter method below may suit you better. Our guide to setting up Private Space on Android walks through the setup in detail, including how to hide the space itself from the app list.
Private Space is also the option to check first if you are buying or setting up a new phone, because it costs nothing, needs no third-party app, and does not hand your data to anyone else. If your phone runs Android 15 or later and you have one or two apps you want properly separated, start here and only look further if it does not fit.
Option 2: Samsung Secure Folder and Other Manufacturer Locks
If you use a Samsung phone, you have a second thorough option that many owners never open: Secure Folder. Like Private Space, it creates a separate, locked area for apps and files, protected by a PIN, pattern, password, or fingerprint. Apps inside Secure Folder are separate installations with their own data, and the folder itself can be hidden from the home screen and app list. For a Samsung owner, Secure Folder and Private Space overlap a lot, and either one is a reasonable choice; Secure Folder has been around longer, so it is the one Samsung’s own support pages document most fully.
Other manufacturers offer their own versions, and this is where things get inconsistent. Some brands include an app lock in their settings — often under Privacy, Security, or a similarly named section — that locks individual apps with a PIN or fingerprint without creating a separate space. Others offer nothing at all. The names, locations, and behaviour vary so much between brands that a single set of steps would be misleading, so the honest route is to search your phone’s Settings for “app lock” and see what your manufacturer actually provides. If nothing appears, that is useful information in itself: it tells you that your phone’s built-in options are Private Space or screen pinning, not a per-app lock.
One caution applies to all manufacturer locks: they are tied to the account and lock method you set up with them, so losing access to that method can lock you out of your own apps. Before you rely on any manufacturer lock for something important, make sure you know how to recover it — whether that is a linked account, a backup PIN, or a recovery question — and write that recovery detail down somewhere safe, not on the phone itself.
Option 3: Screen Pinning — A Different Job, Useful in Its Own Way
Screen pinning is often confused with app locking, and it is worth being clear about the difference because the two solve different problems. Pinning locks the phone to a single app, so the person holding it cannot switch to another app without unpinning it. It does not lock an app against you, the owner; it locks the borrower inside the app you chose. That is exactly right for the most common borrowing situation — a child watching a video, a friend looking at a map — and completely wrong if your aim is to keep a banking app locked while you use the rest of the phone normally.
To use it, you typically open the app, open the recent apps view, tap the app’s icon or menu, and choose Pin. Unpinning usually needs a gesture combined with your lock method, which you can set in Settings under Security. It is a light, quick tool, and that is its strength: no setup, no separate space, no extra account. Its weakness is also its lightness. A determined person with time and your unlocked phone can often find a way out, so pinning is a courtesy barrier for casual borrowing, not a security boundary for sensitive data. For the latter, Private Space or Secure Folder is the right tool.
What About Apps That Lock Themselves?
Some apps do not need a system-level lock at all, because they include their own. Many banking apps, password managers, and messaging apps offer an in-app lock — a PIN, fingerprint, or face check that appears when you open the app or return to it after a while. Where an app offers this, turning it on is usually the simplest and most reliable option for that one app, because the lock is designed for that app’s data and it travels with the app if you change phones.
The sensible approach is to check the app’s own settings first, before adding a system-level lock on top of it. Open the app, look in Settings or Privacy for an app lock, passcode, or biometric option, and turn it on if it is there. Two locks on the same app — an in-app lock plus Private Space, for example — are not harmful, but they are rarely necessary, and each extra unlock step is a small daily friction. Start with the app’s own lock, add a system-level separation only for apps that do not offer one, and leave the rest of the phone alone.
Comparing the Options at a Glance
| Method | Best for | What it hides | Main drawback |
|---|---|---|---|
| Private Space (Android 15+) | Apps you want fully out of sight | The app, its notifications, and its data | Separate installation; extra setup per app |
| Samsung Secure Folder | Samsung owners wanting a locked area | Apps and files inside the folder | Only on Samsung phones; separate installation |
| Manufacturer app lock | Locking single apps with a PIN or fingerprint | Access to the locked app | Availability and behaviour vary by brand |
| In-app lock | Banking, messaging, and password apps | Access to that one app | Only where the app itself offers it |
| Screen pinning | Lending the phone for one task | Everything except the pinned app | Not a lock on your own apps; light protection only |
Third-Party App Lockers: When to Be Careful
Search the Play Store for “app lock” and you will find dozens of third-party lockers promising a PIN or pattern on any app. Some of them work as advertised, but they come with a cost that is easy to overlook: to lock other apps, a locker typically needs broad permissions, including accessibility access and the ability to draw over other apps. That is a lot of trust to place in an app whose whole job is to sit between you and your private apps, and the Play Store’s history includes lockers that showed aggressive ads, collected more data than they needed, or stopped being maintained.
That does not mean every third-party locker is bad, but it does mean the bar should be high. Before installing one, check who makes it, how long it has been maintained, what permissions it asks for, and whether reviews mention ads or unexpected behaviour. If a built-in option covers your need — and for most people, Private Space, Secure Folder, or an in-app lock does — there is little reason to add a third-party locker at all. Our guide to Android app permissions explains how to judge what an app is asking for before you grant it. And if you do try a locker, test it with a non-sensitive app first, and make sure you know how to remove it and regain access before you lock anything important.
When Locking Is Not the Right Answer
Locking is a good tool, but it is not always the right one, and naming the exceptions saves frustration. If the real worry is a child opening unsuitable content, a lock on one app does less than the broader parental controls and content settings that Android and the Play Store provide — our guide to setting up safety features on Android sits alongside the wider safety settings worth reviewing for a family phone. If the worry is someone picking up a lost phone, a lock on individual apps is no substitute for a strong lock screen and Find Hub, which protect the whole device. And if the worry is that someone with your unlocked phone and plenty of time will get in anyway, no app lock changes that equation much; the honest answer there is to keep the phone locked when you are not using it, and to treat app locks as a layer for casual borrowing, not a vault.
A final practical point: whatever method you choose, test it the way a borrower would. Hand the phone to someone you trust, or simply try it yourself with fresh eyes, and see whether the locked app is actually hidden or locked, whether notifications leak anything, and whether unpinning or unlocking behaves as you expect. A lock you have never tested is a guess, and a five-minute test turns it into something you can rely on.
Frequently Asked Questions
Can I lock a single app on a Pixel phone?
There is no built-in per-app PIN lock on stock Android at present, though beta reports suggest an App Lock feature may arrive in a future release. For now, the practical built-in answers on a Pixel are Private Space for full separation, an in-app lock where the app offers one, and screen pinning when lending the phone for a single task.
Does Private Space hide notifications from locked apps?
Yes, when Private Space is locked, notifications from apps inside it are hidden. That is one of the main differences between a separate space and a simple app lock, where a notification preview could still give something away.
Will moving an app to Private Space or Secure Folder delete its data?
It does not delete the original app’s data, but the version inside the space is a separate installation with its own data, so you will need to sign in and set it up again there. Keep that in mind before moving an app you rely on daily.
Is screen pinning enough to keep a child in one app?
For casual use, usually yes, especially combined with your phone’s lock method for unpinning. For a determined child with time alone with the phone, it is a light barrier rather than a guarantee, so it works best alongside broader parental controls.
Should I install a third-party app locker?
Only if no built-in option covers your need, and only after checking the developer, the permissions it requests, and recent reviews. Built-in options do not require handing broad access to another app, so they are the safer starting point for most people.
Pick the Lightest Lock That Covers the Situation
The best app lock is rarely the strongest one in absolute terms; it is the one you will actually use every day without resenting it. For a borrowed phone and a single task, pin the screen. For one or two sensitive apps, turn on their in-app locks, or move them into Private Space or Secure Folder. For a phone that regularly passes between hands, combine a strong lock screen with a locked space for the private apps and leave the everyday apps alone. That layered, boring approach — lock screen for the device, a separate space for the private few, pinning for the borrower — covers nearly every real situation, without a single extra app, and without pretending that one lock fits every phone.
