When looking for an app for your Android device, the most common option is to go to the Google Play Store, as it is the official store that guarantees a certain level of security and authenticity. However, there are other ways to install apps that can be just as useful, although they require a special process that involves granting permissions for install apps from unknown sourcesUnderstanding when and how to enable this permission is critical to taking full advantage of Android's capabilities without compromising your device's security.
What are apps from unknown sources?
Applications from unknown sources These are all the apps that are downloaded and installed on your Android device from a location other than the Google Play Store. Their most common format is APK file (Android Application Package), which contains all the elements needed to install an app, similar to how EXE files work on Windows or DMG files on macOS.
In the Play Store, users only need to tap a button to install apps because the entire process is automatic, but when installing an APK from outside the operating system, the operating system requires additional steps to ensure security. Starting with Android 8, Google improved these controls so that permission to install unknown apps must be granted individually depending on the app initiating the installation, such as browsers, file managers, or messaging apps.
Furthermore, it is necessary to distinguish between apps of unknown origin y unknown sourcesThe term refers to both the download location and the installation method. While installing apps outside the Play Store certainly carries certain risks, it also opens the door to useful tools, faster updates, or apps not officially available in the store.
Why does Android block the installation of unknown apps by default?
By default, Android blocks the installation of external APK files to protect users from potential security threats. Apps from outside the Play Store may contain viruses, malware, spyware, or malicious code designed to steal personal information, harm the system, or display intrusive ads. Therefore, when you try to install an APK, the system displays a clear warning about the risks involved and forces you to manually authorize the installation.
The protection of this default setting is there to promote user security, but Android leaves you free to activate it at your own discretion. It's important that you download APKs only from reliable sources and well-rated, and that you review the permissions that each app requests before installing it.
Main alternative sources and safe APK app stores
There are several alternative stores and repositories to the Google Play Store that have gained a strong reputation and trust among users. While no alternative matches the Play Store's security, some have established themselves as reliable options for installing apps from unknown sources.
- AppGallery (Huawei): Official Huawei platform with thousands of secure and vetted apps.
- Galaxy Store (Samsung): Official alternative for Samsung devices, with optimized and verified content.
- Aurora Store: Open-source application that acts as an alternative interface for Google Play and allows you to download APKs without a Google account.
- APK Mirror: One of the most famous repositories, managed by experts who verify the authenticity of files before publishing them.
- Amazon App store: Globally recognized store, owned by Amazon, with vetted apps.
- F-Droid: Specializing in free and open source software applications, all audited to prevent malware.
In any of these stores, before downloading, always check the ratings, comments, and origin of the developer to ensure the highest level of security possible. Although most apps are safe, careless downloading increases the risk of compromising your device.
How to enable installation permission for apps from unknown sources
The process for allowing the installation of apps from unknown sources has changed over time and depends on the Android version and the manufacturer's customization layer. Below is how to do it in recent versions (Android 8 and later) and how it was in older versions:
Android 8 (Oreo) and later versions
Since Android 8, permission is granted individually to each app that requests to install an APK file. So, if you download an APK from Chrome, you must authorize Chrome; if it's from WhatsApp or a file manager, permission is granted only to that specific app. Here are the general steps:
- Download the APK from the desired source (browser, file manager, email, etc.). When you try to open the file, you'll see a message indicating that the installation is blocked.
- In the message, select «Settings» o "Settings".
- locate the section “Install unknown apps”Depending on the manufacturer, the exact route may vary. Some typical routes include:
- Settings → Apps & notifications → Special app access → Install unknown apps (Pure Android, OnePlus, Motorola, Nokia, Google Pixel)
- Settings → Biometrics and security → Install unknown apps (Samsung)
- Settings → Privacy → Manage → Special app access → Install unknown apps (Xiaomi)
- Settings → Security & privacy → Additional settings → Install apps from external sources (Huawei, Honor)
- Select the app from which you downloaded or opened the APK (e.g., Chrome, WhatsApp, Gmail, file manager).
- Activate the option "Allow from this source".
- Go back and start the installation. If you download from another app in the future, you'll need to repeat the process for that app.
Each app from which you install APK files will require the corresponding permission the first time. You can revoke it later by following the same procedure and unchecking the box.
Android 7 (Nougat) and earlier versions
In older versions of Android, the procedure was global, meaning a single option allowed you to install APK files from any app:
- Accede to Settings in the main menu.
- Find the section "Security" (on Android 2.3 or earlier it is "Applications").
- Check the box "Unknown origins" o "Unknown sources".
- Accept the security warning that appears.
This option allowed free installation of any downloaded APK, but presented greater dangers by not limiting permissions per app.
Remember that depending on your device model, the graphical interface and menu names may differ, but the process always depends on enabling this special permission.
What permissions can APK applications request?
When you install applications from unknown sources, it is vital check permissions that each APK requests. Some of the most common permissions are:
- File access: Allows you to view, modify or delete data stored on the device.
- Location: Precise and in-depth geolocation.
- Microphone y camera: Record sound, take photos or videos.
- Contacts, SMS y calls: Access to personal information and communications.
- Notifications: Read or manage notifications on your mobile.
- Network and nearby devices: Access network connections or manage other Bluetooth/WiFi devices.
In the device settings You can modify or revoke these permissions at any time. To manage them, go to Settings → Applications, select the desired app, access Permissions and disable those that you don't consider necessary or that may put your privacy at risk.
Safety tips when installing applications from unknown sources
- Download only from trusted sources: Use reputable stores and repositories, such as those mentioned above.
- Verify the authenticity of the APK: Always download the file from the developer's official website or sites that verify the integrity and originality of the apps.
- Review the permissions requested by the application: Be cautious if an app asks for more permissions than it should need to function.
- Keep your operating system and antivirus updated: Updates close vulnerabilities and antivirus software can detect malicious software.
- Disable permission to install from unknown sources when not in use.: This prevents malicious apps from taking advantage of this access without your consent.
What to do after installing an APK from an unknown source?
Once you have completed the installation, we recommend:
- Disable the “install unknown apps” permission for the corresponding app.
- Check if the app requests updates or additional permissions after installation. Be wary of apps that request unnecessary access or exhibit suspicious behavior.
- If you decide to uninstall the app, do so from your system settings and use features like "Automatically remove permissions from unused apps" to keep your device secure.
Frequently asked questions about apps from unknown sources on Android
Is it safe to install external apps? If you download from trusted sources, review permissions, and keep them enabled only when absolutely necessary, the risk is low, although it will never be zero compared to the Play Store.
Can I install APKs on any Android device? Yes, all Android devices allow APK installation, but the process may vary depending on the version and manufacturer.
Can I quickly uninstall apps installed from unknown sources? You can uninstall them just like any other app, from your system settings. You can also revoke the corresponding permissions at any time.
What happens if I install an app with malware? Malware can affect performance, expose your information, or control device functions. Therefore, always review your files carefully and use security tools.
The possibility of Install apps from unknown sources on Android It expands the limits of your device, allowing you to experiment and access more tools, new features, or services not available on the Play Store. However, it's essential to do so in an informed and responsible manner, enabling permissions only when necessary, using trusted sources, and properly managing the permissions of each app. Learn how to hide apps on Android can be helpful in maintaining security and privacy on your device.
