How to Check Which Apps Can Install Unknown Apps on Android

Android gives users a useful security setting called Install unknown apps. This permission controls whether a particular app is allowed to install applications from sources other than the Google Play Store.

For example, if you download an APK file using Chrome, a file manager, Telegram, or another application, Android may ask you to allow that app to install unknown apps.

This permission can be useful when you intentionally install APK files, but it is also important to know which apps currently have access to it.

If you are wondering how to check which apps can install unknown apps on your Android phone, you can usually find the answer directly in your phone’s Settings app.

The exact menu names can vary depending on the Android version and phone manufacturer, but the general process is similar.

What Does “Install Unknown Apps” Mean?

Android normally expects applications to be installed through trusted sources such as the Google Play Store.

However, Android also allows users to install apps manually using APK files.

To make this possible, Android uses an Install unknown apps permission.

This permission is generally granted to individual apps rather than being a single switch for the entire phone.

For example, you might allow Chrome to install an APK.

You could also allow a file manager to install an APK.

That means two different apps could potentially have permission to start the installation of apps from outside the Play Store.

How to Check Which Apps Have This Permission

The easiest way to check is through Android Settings.

Step 1: Open Settings

Open the Settings app on your Android phone.

You can usually find it in the app drawer or by tapping the gear icon in the notification panel.

Step 2: Open Apps

Scroll through Settings and look for Apps, Apps & notifications, or a similar option.

Tap it to view the applications installed on your phone.

Step 3: Find Special App Access

Depending on your Android version, look for an option such as:

Special app access

You may need to tap Special access or open an additional menu before you see it.

Special app access contains permissions that are different from ordinary app permissions.

Step 4: Tap Install Unknown Apps

Inside Special App Access, look for:

Install unknown apps

Tap this option.

You should now see a list of applications that can potentially be granted permission to install apps from unknown sources.

Step 5: Check Individual Apps

Tap an app from the list.

You should see an option similar to:

Allow from this source

If the switch is enabled, that app currently has permission to install applications from that source.

If it is disabled, the app does not currently have this permission.

How to Disable Unknown App Installation Permission

If you find an app that does not need this permission, you can turn it off.

Open:

Settings → Apps → Special app access → Install unknown apps

Select the app and turn off:

Allow from this source

This prevents that particular app from being used to install APK files.

You don’t necessarily need to uninstall the app.

Simply disabling the permission can be enough if you still want to use the application for its normal functions.

Why Does Chrome Appear in This List?

Chrome and other web browsers may appear in the Install Unknown Apps section because browsers can download APK files.

If you intentionally download APK files, Android may allow you to grant the browser permission to start the installation.

If you never install APK files through your browser, you can generally keep this permission disabled.

Why Does a File Manager Appear?

File managers can also appear because they may be used to open an APK file stored on your phone.

For example, you might download an APK and later open it from your Downloads folder.

Android may require the file manager to have permission to install that APK.

Again, the permission is controlled separately for the individual application.

What If You Cannot Find “Install Unknown Apps”?

Don’t worry if your Settings menu doesn’t look exactly the same.

Different Android manufacturers customize the Settings interface.

The option may be located under:

Settings → Apps → Special app access

or:

Settings → Security → Install unknown apps

You can also use the search box inside Settings.

Search for:

Install unknown apps

or:

Unknown apps

This is often the quickest way to locate the setting.

How to Check on Samsung Phones

Samsung uses its own One UI interface, so the exact navigation can differ slightly depending on the device and software version.

Open:

Settings → Apps

Then look for the menu related to Special access.

Find Install unknown apps and tap it.

You should then see apps such as browsers and file managers that may be permitted to install APK files.

Select an app and check whether Allow from this source is enabled.

How to Check on Other Android Phones

The same feature can appear under slightly different menus on phones from different manufacturers.

You may see it on phones from:

• Google
• Samsung
• Motorola
• Xiaomi
• OnePlus
• OPPO
• vivo
• Realme

The wording and location can change with the Android version and manufacturer’s interface.

Using Settings search is often easier than manually checking every menu.

Is It Safe to Allow Unknown Apps?

The permission itself isn’t necessarily dangerous.

The important issue is which app has the permission and what APK you are installing.

If you intentionally install applications from a trusted source, you may need the permission temporarily.

However, granting the permission to unnecessary apps increases the number of apps that can initiate APK installations.

For better security, keep the permission disabled for apps that don’t need it.

Check This Setting After Installing an APK

If you occasionally install APK files, make it a habit to review the permission afterward.

For example:

1. Download the APK.
2. Allow the required app to install it.
3. Install the application.
4. Return to Install unknown apps.
5. Disable the permission if you no longer need it.

This gives you more control over which apps can install applications.

What If You See an App You Don’t Recognize?

If you find an unfamiliar application with this permission, don’t immediately assume that it is malicious.

First check the app’s name, package information and where it came from.

If it is an application you don’t use or don’t recognize, you can disable its Allow from this source permission.

You can also review the app’s other permissions and uninstall it if you determine that it is unnecessary.

Final Thoughts

Checking which apps can install unknown apps is a simple Android security step that many users overlook.

The setting is especially important if you frequently download APK files, use third-party app stores or install applications manually.

Go to Settings → Apps → Special app access → Install unknown apps, then review the apps listed there.

If an app doesn’t need the permission, turn off Allow from this source.

The exact menu can vary between Android phones, so if you can’t find the option, use the Settings search feature and search for Install unknown apps.