A ​​modern smartphone without properly selected applications is like a sports car without fuel: there is potential, but there is nothing to realize it. Even taking into account the fact that Android Without the right applications, it’s like a sports car without fuel: the potential is there, but there’s nothing to realize it. Even taking into account the fact that Google Play offers more 3.5 million applications, 80% of users regularly use no more than 15-20 apps. At the same time, many install the first analogs they come across, without thinking about data security, resource optimization or even basic functions that could simplify everyday tasks.

This article is not about “the most popular applications” according to ratings (which are often sponsored), but about practically proven toolsthat solve specific problems: from protecting personal data to automatically clearing the cache. We sorted the applications into categories, indicated them hidden tricksthat are not in the description Google Play, and added setup instructions for maximum efficiency. And at the end - a checklist that will help you not to miss important details during installation.

Let us warn you right away: some applications from the list have premiumversions, but we focus on free functionswhich will be enough for 90% of users. If you are looking for niche apps (for example, for root-access or custom firmware), go to the "For Advanced Users" section.

📊 Which category of applications do you consider the most important?
Security
Performance
Media
Social networks
Utilities

1. Security: protection against viruses, spyware and data leaks

In 2023 Kaspersky recorded increase in mobile threats by 30% compared to the previous year, with 40% of them disguised as legitimate applications (for example, modified versions of WhatsApp or TikTok). Standard Google Play Protect blocks only the most primitive malware, so without additional tools the risk of catching spyware (spyware) or adware (intrusive advertising) remains high.

Key criteria for choosing an antivirus for Android:

  • 🛡️ Real protection, and not empty notifications about “scanning” (check reviews on Reddit or 4PDA).
  • 🔍 Application rights monitoring: the app should warn if Facebook suddenly will request access to your SMS.
  • 📱 Minimal impact on battery life: some antiviruses drain the battery faster than viruses.

Our expert trio:

  1. Bitdefender Mobile Security —the best balance of protection and performance. Unique feature: scanning in the cloudthat does not load the smartphone processor. The free version includes application scanning and web protection.
  2. Avira Antivirus —strong in blocking phishing links (useful if you often open links from Telegram or email). The premium version has App Lock - blocking applications using a fingerprint.
  3. Malwarebytes - specializes in adware and PUPs (potentially unwanted apps). It real protection time works even without a subscription.
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After installing the antivirus, run a full scan in airplane mode - this will speed up the process and eliminate interference from background applications.

⚠️ Attention: Do not install antiviruses from unknown developers, especially if they ask for rights Accessibility Service or Device Admin. This is a classic sign spyware.

2. Performance optimization: how to restore performance to your smartphone

Over time, even flagship smartphones begin to “slow down” due to:

  • 🗑️ Cluttered cache (on average, applications accumulate up to 1-2 GB of garbage per month).
  • 👻 Background processesthat do not close completely (especially important for Samsung and Xiaomi with their aggressive optimization).
  • 🔋 Unoptimized energy saving settingsthat choke performance.

Solutions for cleaning and speeding up:

ApplicationKey functionHidden featureCons
SD MaidDeep cleaning of the systemFinds "dead" files from deleted applicationsComplicated interface for beginners
GreenifyHibernation of background applicationsWorks without root on most devicesRequires manual configuration
AccuBatteryBattery health monitoringShows the actual battery capacity (not what the manufacturer writes)Free version is limited

Pay special attention Greenify: this is one of the few applications that really extends battery liferather than just closing tasks. After installation:

  1. Run Analysis and select applications that wake up too often.
  2. Activate mode Aggressive Doze (required ADB-command, instructions in the spoiler).
  3. Exclude instant messengers from hibernation, otherwise notifications will arrive with a delay.
How to enable Aggressive Doze without root?

Connect phone to the PC, launch ADB and enter the command: 

adb shell dumpsys deviceidle force-idle

Then Greenify activate the option in the settings. Effect: background processes will be suspended more aggressively, saving up to 20% of the charge.

⚠️ Attention: Applications like Clean Master or DU Speed Booster often contain adware and do not provide a real performance boost. Their “optimization” comes down to closing the cache, which the system will restore in 5 minutes.

3. Multimedia: players, editors and converters

Standard players on Android (for example, Google Play Music or Galaxy Music Player) often do not support rare formats (.flac, .ape, .mkv) and cannot process correctly metadata. And built-in video editors are limited to basic functions. Here's what to install to fully work with media:

For music:

  • 🎵 Poweramp —the best offline player with support Hi-Res Audio and a 10-band equalizer. The free version works for 15 days, but even after expiration it retains the basic functions.
  • 🎧 Musicolet is the only player with true offline work (does not require internet even to manage playlists). Ideal for trips on the subway.

For video:

  • 🎬 VLC - a universal player that opens even damaged files. Hidden feature: can stream video from NAS or FTP.
  • ✂️ CapCut —a free video editor from ByteDance (creators TikTok) with support for 4K i automatic synchronization by bit.

If you often work with video, pay attention to KineMaster —it supports multi-track audio and export to ProRes (useful for editing under YouTube). However, the free version still has a watermark.

Activate Hi-Res output in Settings → Audio → Output|

Disable volume normalization|

Set the equalizer preset "Rock" or "Jazz"|

Enable smooth fading of tracks (Settings → Player → Fading)-->

4. Social networks and instant messengers: alternatives and utilities

Official clients Facebook, Instagram and WhatsApp are known for:

  • 📱 They eat up the battery in the background (up to 15% charge in day).
  • 📡 Transmits data about your activity even when you are not using the application.
  • 🚀 Loads unnecessary functions (for example, Facebook drags modules for Marketplaceeven if you do not use it).

Solutions:

  1. Hermit — creates “lightweight” web applications for social networks. For example, Instagram Lite through Hermit weighs 5 MB instead of 50 MB of the official client.
  2. Frost for Facebook is an unofficial client with blocking ads and trackers. It works through the API, so it does not violate the rules Facebook.
  3. Signal - messenger with full encryption (including metadata). Supports self-destructing messages and does not store chats on servers.

Important: When using unofficial clients (for example, GBWhatsApp), you risk getting your account banned. Hermit i Frost safe because they do not modify original applications.

⚠️ Attention: If you use Instagram for business, avoid third-party clients - they can block access to Insights (account statistics).

5. Utilities for everyday tasks

These applications solve minor but annoying problems:

  • 📎 Join - synchronizes the clipboard, notifications and files between Android and Windows/Mac. Works through Google account, without registration.
  • 🔍 Files by Google is the best file manager with built-in search by content documents (for example, it will find a PDF by phrase inside the text).
  • 📡 NetGuard —a firewall without rootthat blocks Internet access for individual applications. Useful for saving traffic.
  • 📝 Notion or Obsidian —for notes with support Markdown and synchronization. Obsidian better suited for large knowledge bases (wiki style).

Hidden life hack: Files by Google there is a function Clean, which finds duplicate files and offers to delete them. It is hidden in the menu ⋮ → Clean and works even for photos with similar content (for example, burst shots).

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Applications like ES Explorer or Clean Master often contain malicious code. Use only proven file managers from this list.

6. For advanced users: root, ADB and custom settings

If you are ready to dive deeper into the settings Android, these tools will open up new opportunities:

  • 🔧 Termux —a full-fledged Linuxterminal on the phone. Allows you to run Pythonscripts, install SSHserver or even mine crypto (we do not recommend).
  • 📱 Tasker - automation for everything: from turning on Wi-Fi when connected to charging to sending SMS when the battery is low.
  • 🔄 Swift Backup — backup applications and data without root (required ADB). Even saves game settings.

An example of a useful script for Tasker:

  1. Create a task that, when you connect headphones automatically starts Spotify and includes the "For training" playlist.
  2. Add condition: if the battery is below 20%, then instead of music the “Connect charging” notification will be played.

Termux requires basic knowledge Linux, but even a beginner can use ready-made commands. For example, to find out the real model of your processor (and not the one written by the manufacturer), enter: 

cat /proc/cpuinfo | grep "model name"
⚠️ Attention: Using ADB or root-rights may lead to loss of warranty or “brick” of the device. Always make a backup copy before experimenting.

7. Communication and networking applications: VPN, calls, SMS

In the era of total surveillance and blocking, it is impossible to do without the right tools for communication. Here's what to install:

  • 🌍 Proton VPN - the only free VPN without traffic restrictions (but with a speed limit). Servers in 3 countries.
  • 📞 Google Phone —a standard application for calls, but with features: conversation recording and spam blocking.
  • 💬 QKSMS —replacement with standard SMS with support RCS (analog iMessage for Android).

An important nuance: if you use VPN to bypass blocking (for example, Telegram in some countries), avoid free services like Hola or SuperVPN - they sell your traffic to third parties. Proton VPN and Windscribe (10 GB/month free) - proven alternatives.

To check Internet speed, it is better to use Ookla Speedtest, but if you need detailed logs (for example, to complain to your provider), install NetSpeed Monitor —it keeps speed history in the background.

8. Games and entertainment: what is worth trying in 2026

Even if you are not a gamer, these applications will help pass the time usefully:

  • 🎮 Steam Link - streams games from a PC to a phone over a local network. Works even with Cyberpunk 2077 . good Wi-Fi.
  • 🧠 Elevate - a brain trainer with an emphasis on mathematics and logic. The free version gives 3 workouts per day.
  • 🎲 Board Kings - monopoly with live opponents and weekly tournaments You can play offline against. bot.

To emulate old consoles (Nintendo DS, PSP) use RetroArch —this is the “Swiss knife” of emulators with support Netplay (online multiplayer). But remember: You must have game ROMs legally (for example, dumps of your cartridges).

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For a comfortable game on Steam Link use a gamepad Xbox Controller or Razer Kishi. Adjust the bitrate in Settings → Quality to the value 30 Mbit/s for a stable picture.

FAQ: Frequently asked questions about applications for Android

1. Do I need to install an antivirus if I have a new smartphone?

Yes, even on new devices. In 2023, Google removed from Play Market more 100,000 malicious applications, but many of them managed to gain millions of installs before being blocked. An antivirus is needed not so much for protection against viruses as for monitoring suspicious activity (for example, if an application suddenly starts sending SMS to paid numbers).

2. How can I check if an application is stealing my data?

Use Exodus Privacy (web service) or application ClassyShark3xodus to analyze the resolution. They will show which trackers (Facebook SDK, Google Analytics) are built into the app. Also check the reviews on 4PDA —they often disassemble applications “piece by piece.”

3. Why do applications slow down again after clearing the cache?

Cache is not the main reason for slowdowns. Most often the culprits are:

  • Background processes (use Greenify).
  • Memory fragmentation (rebooting every 2-3 days helps).
  • Too many widgets on the main screen (they are constantly updated).

Try disabling animation in Settings → For developers → Window animation (set the value Animation disabled).

4. Is it possible to use modified versions of applications (for example, GBWhatsApp)?

Technically yes, but there are risks:

  • Account ban (especially in WhatsApp or Instagram).
  • Data leak (modified APKs often contain backdoors).
  • No security updates.

Alternative: use official clients through Hermit (see the section on social networks).

5. Which applications are best to delete immediately after purchasing a smartphone?

List "junk" applications (bloatware) that can be safely removed (or disabled):

  • All applications from the manufacturer with the name Xiaomi/Mi/Samsung/Knock (for example, Mi Video, Samsung Free).
  • Facebook App Manager (spys even if you do not use Facebook).
  • Any games from the manufacturer (for example, Asphalt on Huawei).

To delete without root use ADB-command:

adb shell pm uninstall -k --user 0 com.example.app

(replace com.example.app with the batch name of the application).