Have you ever noticed that even after deleting an Android app, the free space on your device hardly increases? Or have you encountered the fact that the messenger starts to slow down, although there seems to be enough memory? This is to blame for all of them, which accumulate over time and occupy gigabytes of space. But what is it really, and is it possible to safely delete it? application data, which accumulate over time and take up gigabytes of space. But what exactly are they, and can they be safely removed?

In this article we will look at what types of application data there are, where they are stored, and why simply deleting the app via Settings → Applications does not always solve the problem. You'll learn how to clear cache and user data without compromising system performance, what tools are available to do this (including hidden Android features), and when it's best to leave these files alone. Also, what to do if after cleaning the application starts working incorrectly.

Spoiler: some data (for example, saved games or messenger settings) cannot be restored after deletion - but we will tell you how to make a backup copy in advance.

What is application data and how does it differ from cache?

Let's start with the main thing: application data and cache are not the same thing, although both take up space on the device. Cache (from English cache) are temporary files that are created to speed up the app. For example, when you open Instagram, the application saves photo thumbnails in the cache so that it will show them faster the next time you launch it. The cache can be deleted with almost no consequences - in the worst case, the application will simply take longer to load the data the next time it is opened.

But data applications —these are “serious” files that contain:

  • 📁 User settings (themes, language, notifications).
  • 🎮 Game saves (progress, achievements, purchases).
  • 📥 Downloaded media files (photos from chats, music in offline mode).
  • 🔑 Local databases (message history, contacts in instant messengers).
  • 📝 Files configuration (for example, location of widgets on the main screen).

If you delete this data, the application will “forget” everything that you configured in it and will return to the state “as after the first installation”. For example, in WhatsApp all chats will be lost (if there was no backup), and in Spotify downloaded playlists.

📊 How often do you clear application data on Android?
Never cleared
Once a month
Only when memory runs out
After deleting each application

Where application data is stored on Android

Application files are distributed across several folders in the device memory. Main locations:

  • 📂 /data/data/[application_package_name] — here are user data and settings (available only with rights root).
  • 📂 /data/app — installation files (APK), but not user data.
  • 📂 /sdcard/Android/data/[package_name] — external data (game cache, downloaded files).
  • 📂 /sdcard/Android/obb — additional game files (usually weighing several gigabytes).

Most users cannot directly view the folder /data/data without root access, but some files (for example, cache Google Play Services) can take up to 10+ GB! GB

Settings → Applications → [Select an application] → Memory

There you will see a division into:

  • 🔹 Application memory - file itself. APK-file.
  • 🔹 User data — settings, saves.
  • 🔹 Cache —temporary files.
What are OBB files?

These are archives with additional data for games (textures, levels, sounds). They are downloaded automatically when you first start the game and can weigh from 100 MB to 5+ GB. You can delete them, but after that the game may not start or require re-downloading.

Is it possible to delete application data and what happens after that

Yes you can —but with reservations, the consequences depend on the type of data:

Data type Can I delete What happens after deletion
Application cache ✅ Yes The application will take longer to load the next time you open it, but all settings and data will be saved.
User data ⚠️ Yes, but be careful All settings will be reset, game saves and chat history will be lost (if there is no backup).
OBB files of games ✅ Yes The game may not start or may require re-downloading data (sometimes up to 5+ GB).
Files in /Android/data ✅ Yes Downloaded media files (photos from chats, offline music) and some settings will be deleted.

⚠️ Attention: Some system applications (for example, Google Play Services or Android System WebView) after clearing the data may begin to work unstable. In rare cases, this leads to cyclic reboot of the device.

Also be careful with:

  • 🔐 Password managers (for example, 1Password or Bitwarden) - after clearing the data you will have to log in again account.
  • 💳 Banking applications —may require re-activation via SMS.
  • 📱 Launchers (for example, Nova Launcher) - all work settings will be reset table.
💡

Before clearing application data, check whether it has a function for exporting settings. For example, in WhatsApp you can backup chats in Settings → Chat → Backup copying.

How to delete application data: 4 proven methods

There are several cleaning methods - from standard Android tools to third-party utilities. Let's consider them in order.

1. Through Android settings (without root)

The safest. method:

  1. Open Settings → Applications.
  2. Select the desired application (for example, Telegram).
  3. Click Memory (or Storage on some firmware).
  4. Tap Clear cache (safe) or Clear data (will reset all settings).

⚠️ Attention: On some devices (for example, Xiaomi or Huawei), the option to clear data may be hidden behind the additional menu. If there is no button, try clicking on the three dots in the upper right corner.

2. Through the recovery menu (Recovery Mode)

This method is useful if Android does not boot due to full memory:

  1. Turn off the device.
  2. Hold down the key combination to enter in Recovery (usually Power + Volume up).
  3. Select Wipe cache partition (clear cache) or Wipe data/factory reset (full reset).

🔴 Warning: Wipe data/factory reset will delete all data on the device, including photos and contacts! Use only as a last resort.

3. data-i="166">If you need to clear the data of a specific application without access to the interface:

If you need to clear data for a specific application without access to the interface:

adb shell pm clear com.package.name

Where com.package.name is the package identifier (you can find out through App Inspector or website APKMirror).

4. Third-party utilities (CCleaner, SD Maid)

Applications like CCleaner or SD Maid allow you to massively clear the cache and unnecessary files. However:

  • ✅ Plus: you can delete the cache of all applications in one tap.
  • ❌ Minus: risk of deleting important files (especially if the utility requests root access).

Make a backup copy of important files

Check if there is cloud saving (for example, in games)

Remember logins/passwords for accounts in the application

See how much space will be freed up (in the memory settings)-->

What data should not be deleted (and why)

Not all application files can be safely erased. Here is what is best not to touch:

  • 🔒 System application data (For example, Google Play Services or Android System) - clearing them can lead to errors synchronization or the impossibility of updating the OS.
  • 📱 Launcher files —after deletion, all shortcuts and widgets from the desktop will disappear.
  • 🎵 Offline cache of music services (for example, Spotify or Yandex Music) - you will have to download the tracks again, spending traffic.
  • 📸 Media files from instant messengers —if you are not sure that they are duplicated in the gallery.

Also not recommended clear data:

  • 🔄 Applications for two-factor authentication (for example, Google Authenticator) - you may lose access to accounts.
  • 💼 Corporate messengers (for example, Microsoft Teams) - repeated settings may be required from administrator.

If in doubt, it’s better transfer the files to computer before deleting. To do this, connect the phone via USB in mode File transfer (MTP) and copy the folder /Android/data/[package_name].

💡

Before mass data clearing, check whether the application uses cloud synchronization. For example, Google Photos automatically uploads media files to the cloud, so you can safely do so. delete from the device.

What to do if the application does not work after cleaning

Sometimes after deleting data, the application starts to crash, does not start, or requires re-authorization:

  1. Restart the device - often helps with crashes after cleaning. cache.
  2. Update the application via Google Play - the old version may conflict with the cleared data.
  3. Clear the cache again - sometimes temporary files are not restored correctly.
  4. Reinstall the application —delete it completely and reinstall it.
  5. Check resolution —after clearing the data, some functions (for example, access to the camera) may be disabled.

If the problem persists, look at the error logs via ADB Logcat or contact the developer support. For example, to run the logs:

adb logcat | grep "application_package_name"

⚠️ Attention: If after clearing the data system application (for example, Settings or Phone) the device has become unstable, try resetting the settings to factory settings via Recovery Mode.

How to automate data cleaning (for advanced users)

If you regularly clean your memory, you can set up automatic cleaning using:

  • 🤖 Tasker —an application to automate actions. You can create a task that will clear the cache once a week.
  • 📱 MacroDroid - simplified alternative Tasker with a visual editor.
  • 💻 ADB scripts —if you know how to write batch files, you can create a file with the command:
adb shell pm clear com.example.app

adb shell pm clear com.example.app2

Also on some firmwares (for example MIUI or ColorOS) there are built-in tools for automatic cleaning:

Settings → Battery and performance → Memory clearing

🔹 Important: Automatic clearing of data (not cache!) can lead to the loss of important information. Set it up only for unnecessary applications.

FAQ: Frequently asked questions about application data on Android

Is it possible to delete application data without root access?

Yes, through standard Android settings (Settings → Applications → Storage → Clear data). root access is only needed to access system folders like /data/data.

Why does data remain after deleting an application?

Android saves some files (for example, cache or OBB) in folder /Android/data on the internal memory. They must be deleted manually through the file manager.

How to restore data after cleaning?

If there was a backup (for example, in Google Drive or Titanium Backup) - restore it Without. backup data is lost forever.

How much space can be freed by clearing the data?

Depends on applications. For example, the cache Google Play Services can take up to 2-5 GB, and game data like Call of Duty Mobile - up to 10+ GB.

Is it possible to clear the data of all applications at once?

Yes, using ADB or third-party utilities like SD MaidBut this is risky - it is better to clear it selectively.

If you have never cleared application data, try starting with the cache - it's safe and often frees up several gigabytes. Always make backup copies for other files!