Have you noticed that your smartphone has begun to slow down, applications take a long time to open, and games freeze? Blame it all - Android started to slow down, applications take a long time to open, and games freeze? Blame it all - lack of random access memory (RAM). Even on modern devices with 8–12 GB of RAM, some applications can eat up the lion's share of resources, leaving the system with crumbs to work with. But how do you understand which apps are to blame for lags, and what to do about them?

In this article we will figure out what types of applications most often overload RAMhow to identify them using built-in tools and third-party utilities, and also give practical advice on optimization. You will learn why even closed apps continue to hang in memory, which services Google and smartphone manufacturers cannot be disabled, and how to properly clear RAM without harming the system.

Spoiler: games or instant messengers are not always to blame. Sometimes the problem lies in background software that you don't even know about!

Why applications take up RAM even after closing

Many users think that swiping up on an application card in the multitasking menu completely closes it. Actually this is not so. Android manages memory based on caching: The system leaves recently used apps in RAM so that they open faster the next time you start them. This is normal behavior, but some applications abuse it.

Here are the main reasons why RAM remains busy:

  • 🔄 Background processes: Applications (especially social networks and instant messengers) continue to run in the background, updating data, sending notifications or synchronizing content.
  • 📱 Google and manufacturer services: Google Play Services, System UI, proprietary shells (MIUI, One UI, ColorOS) are constantly active for stable operation of the system.
  • 🎮 Unoptimized games: Many mobile games (especially on Unity or Unreal Engine) do not free RAM after closing, leaving “garbage” in memory.
  • 🔍 Viruses and adware: Some applications (especially from third-party sources) contain hidden modules for mining or displaying advertising that load the system.

It is important to understand: free RAM is not always good. Android specifically keeps frequently used data in memory to speed up your work. Problems begin when background processes take up more than 70-80% of RAM, leaving too few resources for active tasks. In this case, manual optimization is needed.

📊 How often do you clear RAM on your Android device?
Once every day
Once a week
Only when it slows down
Never clean it

Top 10 types of applications that load the most on RAM

Not all apps are equally voracious. We analyzed data from devices on Android 12–14 and identified categories of applications that most often occupy RAM. Here they are, from the most “heavy” to the least resource-intensive:

Application type Average RAM consumption Examples Why so much?
🎮 Mobile games (AAA) 1–3 GB Genshin Impact, PUBG Mobile, Call of Duty: Mobile Complex graphics, physics, online synchronization
📱 Social networks 300–800 MB Facebook, Instagram, TikTok Continuous loading of content, analytics, tracking
💬 Messengers 200–500 MB Telegram, WhatsApp, Viber Background synchronization, voice messages, chat bots
📺 Streaming services 400–1 GB YouTube, Twitch, Netflix Video buffering, analytics views
📊 Fitness trackers 150–400 MB Google Fit, Strava, Mi Fitness Continuous monitoring of sensors (GPS, heart rate)

Please note: system applications: Some manufacturers (for example, (for example, com.android.systemui or android.process.media) can also take up to 500–700 MB of RAM, but they cannot be deleted or stopped without root access. Their work is critical for the stability of Android.

⚠️ Attention: Some manufacturers (eg. Xiaomi or Huaweiaggressively optimize RAM, forcibly closing background processes. This may interfere with the operation of instant messengers or trackers. In the developer settings (Settings → System → For developers), you can disable the option Do not save actions (or Limiting processes), but this will increase the memory load.

How to check which applications are using RAM

To find out exactly which apps are using up RAM, you do not need to install third-party utilities - Android has built-in tools. Here are step-by-step guide:

  1. Open Settings → Applications (or Settings → Memory on some devices).

  2. Tap on the three dots in the upper right corner and select Memory or RAM Usage.

  3. The system will show a graph for the last 3-24 hours, broken down by application. Click on any to see detailed statistics.

For deeper analysis, you can use third-party utilities:

  • 📊 Developer Options (included in Settings → About phone → Build number — tap 7 times). There is a section Processes with detailed information about each running service.
  • 🔍 Simple System Monitor (free application without unnecessary water) - shows the use of RAM, CPU and network in real time.
  • 🛠️ Greenify (requires root for full functionality) - helps to “put to sleep” background processes.

Enable developer mode (7 taps by build number)

Open Settings → System → For developers → Processes

Look at the list of active applications and their RAM consumption

Compare the data with the average values ​​from the table above-->

If you see that an application constantly takes up >500 MB of RAM, even when not in use, this is a reason to think about deleting or limiting it.

How to free up RAM without harm to the system

Many users make the same mistake: they install “RAM optimizers” from Google Playwhich promise to “speed up the phone by 2 times.” In fact, most of these apps are useless or even harmful they forcefully close processes, which Android then load again, wasting additional resources.

Here correct ways release RAM:

  • 🧹 Manual cleaning: In the multitasking menu (Recents button), swipe up unnecessary applications. But remember: this is a temporary measure.
  • ⚙️ Limit background activity: In the application settings (Settings → Applications → [name] → Battery) select Limited background mode.
  • 🔄 Reboot: Regular reboot (every 2-3 days) clears the cache and removes “frozen” processes.
  • 🗑️ Removing unnecessary apps: Go through the list of installed applications and remove those that you do not use.
⚠️ Attention: Do not use commands like killall or tasks force-stop for system processes (for example, com.android.phone or android.process.acore). This can lead to loss of mobile communication, interface errors, or even “brick” of the device.

For advanced users there is another method - file settings build.prop (requires root). For example, the line ro.config.low_ram=true causes the system to free up memory more actively, but this can make multitasking worse. Be careful!

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If your device supports Virtual RAM (for example, Xiaomi or Realme), enable this feature in the settings. It uses part of the internal memory as additional RAM, but don’t expect miracles - the performance increase will only be noticeable if there is a lack of physical memory.

What system processes can (and cannot) be stopped

In the list of active processes you can see dozens of system services with unclear names like com.qualcomm.qti or android.ext.services. Most of them are critical for the operation of the device, but some can be safely disabled.

Here is a short guide:

Process Can it be stopped? Consequences of shutdown
com.android.systemui ❌ No The notification panel will disappear, the screen will be locked
com.google.android.gms (Google Play Services) ❌ No Services will stop working, including Google-services, including Play Market
com.android.phone ❌ No Mobile communications and SMS will be lost
com.sec.android.app.launcher (launcher Samsung) ⚠️ Partially Can be replaced with another launcher (for example, Nova Launcher)
com.android.vending (Play Market) ⚠️ Only if do not use You cannot update applications through Play Market

If you are not sure what a particular process does, do not stop itIt is better to look for information in Google by the name of the package (for example, “what is com.android.cts.ctsshim”). with security or hardware functions (for example, com.qualcomm.atfwd is responsible for the modem on chips Snapdragon).

What to do if a system process loads RAM more than normal?

If you notice that some system service (for example, mediaserver) constantly takes up >300 MB of RAM, this may be a sign of a failure. Try:

1. Restart the device.

2. Clear the application cache (Settings → Applications → [name] → Memory → Clear cache).

3. Update the firmware (the bug may be fixed in the new version).

If the problem persists, this is a reason to contact a service center (the file system may be damaged or there is a conflict with custom software).

Myths about cleaning RAM that are not worth it believe

The Internet is full of “tips” for freeing up RAM, which not only do not help, but also harm the device. Let’s look at the most popular myths:

  • 🚫 "You need to keep the RAM empty" —this is not true. Android specially fills memory with cached data to speed up work. Empty RAM is a sign that the system is not optimized.
  • 🚫 "Task Killer speeds up the phone" —on the contrary, forcing processes to close forces them to restart, wasting additional resources.
  • 🚫 “Disabling animation frees up RAM” — animation has almost no effect on memory, it only speeds up the visual perception of the interface.
  • 🚫 "Root is needed to clear RAM" —most problems can be solved without superuser rights. Root can only be useful for deep kernel optimization.

Another common myth: "The more RAM, the faster the smartphone". In fact, the speed depends on the optimization of the software and processor. For example, iPhone with 4 GB RAM it works smoother than many Androiddevices with 12 GB precisely thanks to competent resource management.

If your smartphone is slow, first check:

  1. CPU load (Settings → Battery → Battery usage).
  2. Internal memory speed (applications like A1 SD Bench will show whether the drive is slow).
  3. Device temperature (overheating leads to throttling and lags).
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Cleaning RAM is not a panacea. If your smartphone is slow, the problem may lie in a slow processor, fragmented memory or outdated firmware. Start with diagnostics, not forced optimization.

How to prevent RAM overload in the future

The best way to deal with the lack of RAM is prevention. Here are some tips to help avoid problems:

  • 📥 Install “light” versions applications: Facebook Lite, Messenger Lite, YouTube Go take up 2-3 times less RAM.
  • 🔄 Update applications and firmware: New versions often optimize memory consumption (for example, Android 14 manages background processes better than Android 10).
  • 🚫 Avoid "junk" utilities: Applications like Clean Master or DU Speed Booster they load the system and show false warnings.
  • 🔧 Set up auto-sync: Disable background synchronization for unnecessary accounts (Settings → Accounts → [account] → Synchronization).
  • 📴 Use "cloud" games: Services like Xbox Cloud Gaming or GeForce NOW allow you to play heavy games without loading the smartphone's RAM.

If you often play resource-intensive games, consider buying a smartphone with RAM expansion function (for example, Xiaomi Redmi Note 12 Pro+ or Realme GT Neo 3). These devices can use part of the internal memory as additional RAM, but remember: this is not a full-fledged replacement for physical RAM, but only a temporary solution.

⚠️ Attention: Some devices (especially those with shell MIUI or ColorOS) have a “deep clean” RAM function. It aggressively closes all background processes, which can lead to loss of unsaved data apps. (for example, drafts in messengers or progress in games). Use it only as a last resort.

FAQ: Frequently asked questions about RAM on Android

🔹 Why does the phone start again after clearing the RAM? slow down?

Because Android immediately begins to load frequently used applications into memory (caching them). If you open the same apps after cleaning, they take up RAM again. This is normal system behavior. If the brakes are constant, look for another reason: overheating, a slow drive or background mining (if applications from unverified sources are installed).

🔹 Is it possible to increase RAM on Android without root?

No, you cannot physically increase RAM. But some manufacturers (for example Xiaomi or Oppo) offer a function Virtual RAMthat uses part of the internal memory as additional RAM. The effect of this is minimal, but in some cases it helps. Enabled in the performance settings.

🔹 Why do system applications take up so much RAM?

System processes (for example, Google Play Services or System UI) are responsible for stable operation Android: processing notifications, synchronization, security, etc. They are optimized to run in the background and usually do not interfere with the user. If they take up disproportionately large (for example, >1 GB on a simple device), this could be a sign of a glitch or virus.

🔹 Which apps can be safely deleted to free up RAM?

Safely delete you can:

  • Pre-installed games and services that you do not use (for example, Netflixif you do not have an account).
  • Duplicate applications (for example, two browsers or two instant messengers).
  • Manufacturer’s proprietary utilities (for example, Mi Video or Samsung Notes), if you do not use them.

Do not delete system applications (for example, Google Play Services or Android System WebView) - this may break the device.

🔹 Do “RAM optimizers” from Google Play help?

Most of these applications are useless. They:

  • Forcibly close processes, which Android then load again (wasting additional resources).
  • Show false warnings about the “critical state” of memory.
  • They themselves consume RAM and battery in the background.

The exception is utilities like Greenify (for experienced users), which “put to sleep” unnecessary processes rather than kill them.