Mobile device users are often faced with a situation where they need to obtain an application installation file for backup or transfer to another device. Standard application stores do not provide a direct opportunity to download the APK file of an already installed app, so you have to resort to alternative methods of accessing system directories. Understanding the structure of the file system Android is the key to successfully solving this problem without losing data.
In this article we will look in detail at how to find and copy an executable file from hidden system directories, using both built-in tools and third-party software. You will learn about the difference between user and system applications, as well as the risks associated with interference with operation. The process may vary depending on the version of the operating system and access rights. /system/app And /data/app. The process may vary depending on the operating system version and access rights.
Storage structure of applications in Android
The file system Android is organized hierarchically, and applications are stored in strictly defined directories depending on their status. Custom apps that you download from the store are usually located in the directory /data/app. This is where the main packages are located, which can be safely extracted for personal use or porting.
System utilities preinstalled by the smartphone manufacturer or telecom operator are located in the protected area /system/app or /system/priv-app. Access to these sections is by default closed to the average user, since changing or deleting files from here can lead to unstable operation of the device or complete loss of functionality. Working with these folders often requires special privileges.
Inside a specific application folder, files may be split into several parts, especially if resource sharing technology (Split APKs) is used. In this case, you will see not one file .apk, but a set of files with extensions .apks or several separate APKs with suffixes base, config.arm64_v8a and others. This complicates the process of simple copying, since installation will require a special installer or merging of files.
⚠️ Attention: Direct editing of files in the folder
/systemwithout creating a full backup may lead to a “bootlap” (cyclic reboot) of the device. Always make a backup before any manipulations in system partitions.
Extracting APK through file managers
The easiest way to extract a app is to use an advanced file manager that can work with APK files of installed applications. Applications such as MT Manager, Solid Explorer or FX File Explorerhave built-in functions for exporting installation packages directly from the app management menu.
You do not need to manually search for the path to the file deep in the system. Just open the manager, go to the “Applications” or “APK” section, select the desired app from the list and click the “Copy” or “Share” button. The manager will automatically find the source file in /data/app and save it in a folder accessible to the user, for example, in Download or Documents.
However, if you want to see exactly the physical path and copy the file manually through Explorer, you will need to enable the display of hidden files and, possibly, grant the manager special permissions via ADB (Android Debug Bridge). Without these settings, many file managers simply won't show the contents of system folders, limiting access to user storage only.
Use the APK Analysis feature in file managers to ensure you're copying the full package and not just the base file, especially for modern resource-shared apps.
Using ADB to copy files
For more advanced users with access to a computer, the ideal tool is the Android Debug Bridge (ADB) utility. This method allows you to pull the app out of the folder even without root access, if you have access to USB debugging. First, you need to find out the exact path to the file by running the command in the terminal.
Connect your smartphone to the PC, enable USB debugging and enter the command to find the path to the package. For example, for an application with a package name com.example.app the command adb shell pm path com.example.appis used. The system will return a string like package:/data/app/com.example.app-xyz/base.apk, which needs to be cleared of the prefix package:.
After receiving the path, run the command to extract the file to your computer. This will create a local copy of the APK in the current directory on your PC. This method is reliable and allows you to automate the process of backing up all installed apps using scripts.
adb pull /data/app/com.example.app-xyz/base.apk./backup.apkWhat to do if ADB does not see the device?
Make sure that the ADB driver is installed on your smartphone, USB debugging is enabled in the "For Developers" menu, and you have confirmed permission to debug from this computer in a pop-up window on the phone screen.
Access to system folders with root access
Having root access (superuser) allows full access to the entire file system Android, including protected partitions. Using root-enabled file managers, such as Root Explorer or MiXplorer, you can go to the /system/app directory and directly copy the files of pre-installed apps.
Caution is critical when working with root access. Accidentally changing access rights (chmod) or deleting a file can compromise the integrity of the system. It is recommended to use Read-Only mode (Mount R/O) on system folders and switch to Write mode only when absolutely necessary.
If your goal is simply to pull out the APK and not modify the system, make sure that you copy the file to internal memory or an SD card rather than moving it. Moving a system file from its native folder may cause the application icon to disappear from the menu.
⚠️ Attention: Obtaining root access often voids the warranty on the device and may make it impossible to operate banking applications and highly secure services (Google Pay, banking clients).
Specific Split APKs and basic packages
Modern applications on Google Play are often distributed in the Android App Bundle format, which, when installed, is split into several APK files. This is done to optimize space: the device loads only resources suitable for its screen and processor. When you try to extract such a app, you may encounter the fact that the copied file base.apk will not be installed on another device.
To correctly extract such an application, you need to find all the associated files in the folder /data/app/application package/. Usually there are files with names like base.apk, config.arm64_v8a.apk, config.ru.apk. All of them are necessary for the full operation of the app.
For the convenience of working with such sets, there are utilities that pack all parts into one file with the extension .apks or .xapk. These files can only be installed through special installers, such as SAI (Split APKs Installer), which can read the archive and install all components at the same time.
| Application type | Location | Access without Root | File format |
|---|---|---|---|
| Custom | /data/app |
Partially (via ADB or special. software) | APK / Split APK |
| System | /system/app |
No (reading logs only) | APK |
| Privileged | /system/priv-app |
No | APK |
| Vendor | /vendor/app |
No | APK |
Automation through specialized utilities
Instead of manually searching for files in folders, it is much more effective to use specialized extractor applications. apps like APK Extractor, Send Anywhere or Swift Backup do all the dirty work for you. They scan installed packages, determine their type and extract installation files in a clear form.
Such utilities often have the function of automatically renaming files, adding the application version and extraction date to the name. This is extremely useful when creating an archive of apps, so that later you don’t have to guess which version was saved. Some of them allow you to immediately send a file via messenger or upload to the cloud.
The use of automatic extractors is especially recommended for ordinary users who do not want to understand paths /data/ and terminal commands. This reduces the risk of error and saves time. However, it is worth checking the permissions that such an extractor requests so as not to transfer unnecessary data to third parties.
Specialized extractors automatically process Split APKs, combining them into a format convenient for transfer, which cannot be done by simply copying the file.
Frequently asked questions (FAQ)
You can Is it possible to pull out a system application without root access?
You cannot directly copy a file from /system/app without superuser rights through a regular file manager. However, using ADB with developer rights, you can run the command adb pull for some system applications, if kernel protection does not block that specific path. Also, some extractors use vulnerabilities or specific permissions to read this data.
Why is the copied APK file not installed?
Most often the reason is the Split APK format. You only copied the base file, and additional configuration files are needed for installation. The second reason is incompatibility of Android versions or processor architecture (for example, a file for arm64 will not work on x86). Also, the file could be damaged during copying.
Where is application data stored: in the same folder as the APK?
No, the executable file (APK) and user data are stored separately. The APK is in /data/app or /system/app, and user data (cache, databases, settings) is in the /data/data/package.applicationsfolder. To save progress in the game or settings, you need to copy this particular directory, which requires root access.
Is it safe to install APKs pulled from someone else's phone?
Installing APK files from unknown sources is always risky. The file may have been modified or malicious code may have been inserted into it. In addition, the application version may not be suitable for your device model or Android version, which will cause errors in operation. Always scan files with an antivirus before installation.