Modern operating system-based smartphones Android often come with a huge amount of pre-installed software that the user never intended to use. Not only do these apps take up valuable internal storage space, but they also consume RAM, drain your battery in the background, and collect data about your activity. Understanding which applications are unnecessary in Android is the first step towards deep optimization of the device and returning it to factory speed.
Many gadget owners are afraid to remove system components for fear of turning the phone into a “brick” or disrupting basic functions. However, there is a clear line between critical system services and ordinary garbage imposed by manufacturers or telecom operators. In this article, we will analyze in detail the categories of software that can and should be eliminated, and also provide tools for safely carrying out this procedure without obtaining root access.
To begin with, not everything unnecessary can be removed using standard interface tools. Some apps have system status and require more advanced uninstallation methods. Bloatware is exactly the term used to describe such imposed software. Ignoring the problem leads to the fact that even a powerful processor begins to “suffocate” from many background processes that the user does not even see in the list of running applications.
Bloatware categories: what manufacturers impose
The first and most obvious group is applications from the smartphone manufacturers themselves, such as Samsung, Xiaomi, Huawei or Oppo. They often duplicate the functionality of standard Google utilities, creating confusion and unnecessary load on the system. For example, instead of one browser, you may have three installed: Chrome, the manufacturer’s proprietary browser, and some other partner news aggregator.
Manufacturers often enter into contracts with developers of games and services so that they are pre-installed on every new device. This is done to generate additional profit, but it is the user who suffers. You buy a phone, and your memory is already filled with heavy games, streaming services or app stores that you may never use. If you don't plan to play a particular game right now, there's no point in keeping it on your device.
In addition, there are so-called "skins" or launchers that replace the standard interface. Although they provide additional visualization features, they are often slower than the stock solution and consume more resources. If your goal is maximum performance, you should consider disabling the proprietary shell in favor of a clean Android interface, if your device model allows it.
⚠️ Attention: Before deleting any applications associated with the interface or theme, make sure you have an alternative launcher installed. Otherwise, you may be left without a desktop and the ability to control your smartphone.
You should also pay attention to the analytics and telemetry services that are built into the firmware. They are responsible for collecting device usage statistics and sending data to the company’s servers. While this helps improve the product, for the average user it's just a waste of data and battery power. Disabling such services is often possible through privacy settings, but sometimes deeper intervention is required.
Duplicates of system utilities from Google
In the ecosystem Google there are many applications that are installed by default on certified devices. Some of them are vital, but others are redundant for a specific use case. For example, services Google Play Movies or Google Play Music have been replaced or integrated into other platforms, but their remnants may still be present in the system of older devices.
Duplicates of basic functions are often found. You can have two calendars, two galleries, two voice recorders and even two calculators installed. One from the system, the other from the manufacturer. Using two apps for one task does not make sense, unless you find some unique functions in the alternative that are not available in the standard. In most cases, stock applications from Google work more stable and synchronize better.
Particular attention should be paid to cloud storage. If you actively use Dropbox or OneDrivethen the preinstalled Google Drive with its automatic photo synchronization can create conflicts or simply take up cache space. Setting up sync rules will help, but completely deleting an unused client will free up CPU resources for other tasks.
Use the Freeze function in application settings if you are not sure that you do not need the app. This will disable its operation, but will allow you to quickly restore it if necessary.
The table below will help you navigate which Google services can be safely disabled and which are better left:
| Application | Deletion status | Consequences of disabling |
|---|---|---|
| Google Play Music | Safe | Loss of local library, switch to YouTube Music |
| Google TV / Movies | Safe | Inability to purchase films in the Google ecosystem |
| Google One | Conditionally safe | Disablement management of storage and backups |
| Google Assistant | Not recommended | Loss of voice control and smart functions |
| Google Play Services | Critical | Failure of most applications and notification systems |
Applications from telecom operators and partners
Smartphones purchased from mobile operators or large retail chains often contain specific software that is difficult to get rid of. These could be applications for replenishing accounts, operator-branded stores, news aggregators with a paid subscription, or antiviruses from partners. These apps are unnecessary in Android for most users, since their functions are easily replaced by the browser or standard system tools.
Often, such applications are disguised as system utilities or have device administrator rights, which does not allow them to be removed in the usual way through the settings. They may persistently send notifications advertising tariffs or services. Even if you turn off notifications, the application process will continue to hang in memory, consuming resources.
In some cases, removing such software may void the warranty or interfere with specific SIM card-related functions (for example, visual voicemail). However, 90% of the time, these apps are just a marketing tool and do not affect the underlying communication. Checking the list of installed apps immediately after purchasing a phone allows you to identify such “parasites” and decide to remove them.
⚠️ Attention: Settings interfaces and application names may differ depending on the version of Android and the manufacturer’s shell. Always check the names of the apps to be removed with the current lists in the official communities of your phone model.
Social networks and instant messengers: a hidden threat
Many users do not consider social networks to be unnecessary software, but from a technical point of view, their official clients are one of the most "heavy" and power-hungry applications in the system. Facebook, Instagram, TikTok and even Telegram during active use they take up gigabytes of cache space and constantly running in the background to receive notifications.
If you do not use any social network on a daily basis, there is no point in keeping it installed. But even for active users there is an excellent alternative - PWA (Progressive Web Apps) or lightweight versions of applications. For example, Facebook Lite or using the web version of VKontakte through a browser can save up to 80% of RAM and significantly reduce battery consumption.
Official clients often have access to the microphone, camera, geolocation and contacts, even when you are not using them. This is not only a privacy issue, but also a performance issue. Constant polling of location sensors by the background process of the social network is one of the common reasons why the phone gets warm in your pocket. Removing such applications and replacing them with web shortcuts is a radical but effective optimization method.
☑️ Checking before deleting social networks
It is also worth mentioning instant messengers. If you have five different communication apps installed, think about which ones you actually use. Often people keep old instant messengers “just in case,” but they continue to synchronize data and take up space. Consolidating communication in one or two main applications will make life easier for your smartphone.
How to remove system applications without root access
The traditional method of removal through settings is not available for system applications. However, starting from version Android 6.0, the system has a built-in debugging tool ADB (Android Debug Bridge), which allows you to remove any packages without the need for superuser rights. This is a safe method, since if an error occurs, the application can be easily returned via a computer.
First, you need to activate developer mode on your smartphone. To do this, go to Settings → About phone and quickly click 7 times on the item Build number. After this, a new section will appear in the settings menu For developers, where you need to enable the item USB debugging. Connect the phone to the computer with a cable and confirm permission for debugging on the smartphone screen.
You need to install a minimum set of ADB tools on your computer. After connecting, enter the command in the command line (terminal) to check the connection:
adb devicesIf the device is displayed in the list, you can proceed with removal. The command to uninstall an application for the current user is as follows:
adb shell pm uninstall -k --user 0 package_nameHere package_name is the unique identifier of the application (for example, com.facebook.katana). You can find out the list of all installed packages with the command adb shell pm list packages. This method does not completely remove the application from the system partition, but disables it for your user, freeing up RAM and hiding the icon from the menu.
What to do if the computer does not see the phone?
Make sure the cable is working and supports data transfer, not just charging. Try a different USB port or install official drivers for your smartphone (for example, Samsung USB Drivers or Google USB Driver).
Security analysis: viruses and miners
Sometimes the reason for slow performance lies not in legal but unnecessary software, but in malware. Miner viruses, adware Trojans and spyware can disguise themselves as harmless utilities: “Memory Cleaners”, “Flashlights”, “QR Scanners” or “Wallpapers”. If you notice that your phone starts to slow down immediately after installing some simple app, this is an alarming signal.
Check the list of recently installed applications. If you see a app that you don't remember, or an application without an icon or name in the list of installed apps, it is almost certainly a virus. Such applications often cannot be removed in the usual way, since they receive device administrator rights immediately after installation.
To combat such threats, you first need to go to Settings → Security → Device Administrators and uncheck the suspicious application. Only after this the “Delete” button will become active. In difficult cases, you may need to boot the phone in safe mode, where third-party applications do not launch, which allows you to safely uninstall them.
⚠️ Attention: Never download cleaning applications or antiviruses from unverified sources or from links in advertising banners. Use only the official Google Play Store.
The most effective way to fight viruses is prevention: do not install APK files from dubious sites and carefully read the permissions that the application requests during installation.
Questions and answers (FAQ)
Can I delete Google Play Store?
Technically this is possible via ADB, but it is highly not recommended. Without the Market, you will not be able to update other applications, install new apps, or use many Google services. If your goal is de-Googleification, it is better to use alternative stores like F-Droid, but for the average user, deleting the Market will make the phone practically useless.
Will deleted applications return after resetting the settings?
Yes, if you used the ADB method with the flag --user 0, the application is only hidden for the current user. When you completely reset the phone to factory settings (Factory Reset), the system will restore its original state and all pre-installed applications will appear again. Complete removal requires root access and modification of the system partition.
Is it safe to delete the "Samsung Pass" or "Mi Cloud" applications?
If you do not use the manufacturer's ecosystem (do not store passwords in their manager and do not make backups to their cloud), then deleting these applications is safe. However, if you have attached important data to them, you may lose access to them. It is recommended to first export the data to another format or service.
Why is the space not freed up after deleting applications?
The ADB command deletes only the application itself, but does not always clear its cache and data if they were stored in shared memory before the shutdown. Additionally, some system updates may take up space regardless of installed applications. To completely free up space, it is recommended that after deleting you clear the cache through Recovery mode.
Do you need to remove Android system updates?
No, system update files (often located in the section OTA) are necessary for rollback if the new version fails or for re-installation. Removing them may cause errors the next time you try to update your phone. These files are usually hidden from the user and do not affect everyday work, so they should not be touched.