Backup Android Apps as APK Files

When you factory reset your phone, switch to a new device, or uninstall an app you might need again later, having an APK backup means you can reinstall that exact app version anytime — without internet, without the Play Store, and without worrying about whether the developer has removed it. Some apps disappear from the Play Store entirely (removed by developer, banned for policy violation, or geo-restricted), making a local APK backup the only way to preserve access.

Quick Answer

Open AnExplorer → tap Apps (the apps section on the home screen) → long-press any installed app → tap Backup or Save as APK. The .apk file is saved to your storage and can be shared, copied, or reinstalled anytime.

Why Back Up Apps as APK?

There are several practical reasons to maintain APK backups:

• Before a factory reset: Preserve apps you want to reinstall without re-downloading everything from the Play Store
• Preserving app versions: A new app update might break features you rely on — keep the working version as a backup
• Apps removed from Play Store: Once an app is gone from the store, your only copy is what is already on your device
• Offline installation: Installing apps on devices without internet access (like tablets used in remote areas, or Android TV with no network)
• Sharing apps locally: Transfer apps to another phone via WiFi Share, USB, or Bluetooth without needing internet on either device
• Archiving rare apps: Preserving apps for historical or research purposes

How to Backup a Single App as APK

1. Open AnExplorer
2. On the Home screen, tap Apps (this shows all installed applications on your device)
3. Find the app you want to backup — you can scroll the list or use the search bar
4. Long-press the app icon or name
5. Tap Backup from the context menu
6. AnExplorer saves the .apk file to Internal Storage/Backup/Apps/[AppName].apk
7. A confirmation appears showing the file was saved successfully

The exported APK file is a complete installer package — it can be moved, copied, or shared just like any other file.

Backup Multiple Apps at Once (Batch Export)

When preparing for a factory reset or device migration, you likely want to back up many apps simultaneously:

1. Open AnExplorer → Apps
2. Long-press one app to enter selection mode
3. Tap other apps to add them to the selection — you can select as many as you need
4. Tap ⋮ More → Backup selected (or Export)
5. All selected apps are exported as individual APK files in one batch operation
6. APK files are saved to Internal Storage/Backup/Apps/

This batch process takes just a few seconds for most apps. Large apps (games with significant resources) may take slightly longer to export.

Where APK Backups Are Saved

Default save location: Internal Storage/Backup/Apps/

Each APK is named with the app's human-readable name (e.g., WhatsApp_2.24.5.77.apk) so you can identify them easily later. You can change the backup destination in AnExplorer's settings, or simply move the APK files after export to any location you prefer — SD card, USB drive, or cloud storage.

What an APK Backup Contains (and What It Does Not)

Understanding what is included helps you set appropriate expectations:

Important: An APK backup preserves the app itself — the installer. It does not preserve your app data (settings, login sessions, game progress, etc.). When you reinstall from an APK backup, you start with a fresh app that requires logging in again and reconfiguring settings.

To back up app data:

• Use Android's built-in backup to Google (Settings → System → Backup)
• Use a root-enabled backup tool (requires rooted device)
• Some apps have their own export/sync features (WhatsApp chat backup, game cloud saves)

Reinstalling an App from APK Backup

To reinstall a backed-up app on the same phone or a different device:

1. Navigate to the .apk file in AnExplorer (wherever you saved it)
2. Tap the APK file
3. Android shows the app installation screen with permission information — tap Install
4. If prompted about "Install unknown apps": tap the settings link → enable Allow from this source for AnExplorer → go back and try again
5. The app installs and appears in your app drawer

On Android 8 and later, the "Install unknown apps" permission is granted per-source-app (per file manager), not as a global toggle. You only need to grant this once for AnExplorer.

APK Backup Before Factory Reset — Complete Workflow

Here is the recommended workflow for preserving your apps through a factory reset:

1. Export all apps: AnExplorer → Apps → select all user-installed apps → Backup
2. Copy backups to external storage: Move the entire Backup/Apps/ folder to a USB drive, SD card, or cloud storage (so it survives the reset)
3. Note which apps you backed up: Take a screenshot of the selected apps for reference
4. Perform factory reset: Settings → System → Reset → Erase all data
5. After reset: Install AnExplorer first (from Play Store or a pre-saved APK on USB)
6. Copy APKs back: Move the backup folder from USB/SD/cloud back to internal storage
7. Install each APK: Open AnExplorer → navigate to the backup folder → tap each APK to install

Backup System Apps (Requires Root Access)

Pre-installed apps (system apps) like carrier apps, manufacturer utilities, and default launchers are stored in protected system partitions:

• /system/app/ — standard system apps
• /system/priv-app/ — privileged system apps with elevated permissions
• /product/app/ — product partition apps (OEM additions)

These locations are not accessible without root. If your device is rooted and you have enabled root access in AnExplorer:

1. Open AnExplorer → enable Root mode in Settings
2. Navigate to /system/app/ or /system/priv-app/
3. Find the APK for the system app you want to back up
4. Copy the .apk file to your internal storage

Without root, you can only back up user-installed apps (those you downloaded from the Play Store or sideloaded yourself).

Understanding Bundle Formats (APKM, APKS, XAPK)

Modern Android apps frequently use split APK architecture where the app is distributed as multiple smaller APK files rather than one large one. This is how Google Play delivers apps optimized for your specific device:

When you back up an app that was installed as a split APK, AnExplorer exports it as a single unified APK file that can be reinstalled on any compatible device. AnExplorer can also install all four bundle formats — just tap the file and it handles the session installer process automatically.

Sharing APK Backups with Other Devices

Once you have an APK backup, you can transfer it to other devices using various methods:

• WiFi Share: AnExplorer → select APK → WiFi Share → receive on target device
• Device Connect (HTTP): Start Device Connect on one device → access from browser on another device → download the APK
• USB drive: Copy APK to USB drive → plug into target device → install from USB
• SMB client: Connect to a network share → copy APK to or from the share
• Bluetooth: Share via Bluetooth (slow but works without WiFi)

Troubleshooting APK Backup Issues

AnExplorer shows no "Backup" option for an app

• Some system apps are protected by Android and cannot be exported — this is an OS-level restriction
• Ensure you are in the Apps section (not browsing a general folder)
• Grant AnExplorer the "All files access" permission if not already done

Backed-up APK installs but the app crashes immediately

• The APK architecture may not match the target device (e.g., arm64-v8a APK on an x86 emulator)
• The app version may require a newer Android version than the target device has
• Some apps have integrity checks that prevent running outside the Play Store context — these are rare but exist for DRM-heavy apps

APK file size is much smaller than expected

• The app likely uses split APKs or downloads additional data (OBB files) after installation
• The base APK may be small while additional language packs, screen density resources, or architecture libraries are delivered separately
• For games: the game's actual content (maps, textures) is typically downloaded separately and is not part of the APK

Legal Considerations

APK backups are legal for personal use. Backing up apps you have legitimately installed — whether free or paid — is your right as the device owner. However:

• Distributing paid apps to others who have not purchased them violates app store terms and copyright law
• Distributing modified (cracked) APKs is illegal in most jurisdictions
• Sharing free apps with others for convenience is generally acceptable but check the app's license terms

Related Guides

• APK Installer Feature — how APK installation works in AnExplorer
• Transfer Files to USB — save APK backups to external storage
• Access Hidden Files — browse system directories for advanced backup
• Install APK on Android TV — transfer backed-up APKs to TV