7 best free antiviruses for Android in 2026: which one to choose?

Mobile threats are becoming more sophisticated: from hidden cryptocurrency mining to phishing attacks via instant messengers. According to data Kaspersky, in 2026, every fifth smartphone on Android faced an attempt to become infected with malware. At the same time, 68% of users still do not install an antivirus, relying on built-in protection Google Play Protect which, alas, misses up to 30% of threats. Free antiviruses for Android can close this gap, but how to choose a reliable one among dozens of offers?

In this guide, we tested 12 popular solutions, weeded out suspicious ones and made a rating of the 7 best free antiviruses taking into account:

• 🛡️ Protection level from viruses, Trojans and spyware (data from independent labs AV-Test and AV-Comparatives)
• 📱 Impacts on performance: VPN, call blocker, Wi-Fi network checker data-i="49">Spoiler: (whether the smartphone slows down, drains the battery)
• 🔍 Additional features: VPN, call blocker, Wi-Fi network checker
• 🚫 Intrusive advertising and hidden fees (many "free" antiviruses aggressively promote premium)

Spoiler: not a single antivirus provides 100% protection - but the right one will reduce risks by 80-90%. And if you often download APKs from third-party sources or use public Wi-Fi, you can’t do without it.

1. Why is Android’s built-in protection not enough?

Google Play Protect is a basic scanner that checks applications during installation and once a day. It blocks the most obvious threats, but:

• 🕵️‍♂️ Does not analyze behavior apps (for example, if a legitimate application suddenly starts mining crypto)
• 📦 Does not scan files outside Google Play (APK, documents, archives)
• 🔗 Does not check links in SMS/messengers for phishing
• 📡 Does not protect against attacks through vulnerabilities in the firmware (for example, Dirty Pipe or Stagefright)

Independent tests show: Play Protect detects only 70-75% of malware., while top antiviruses detect up to 98-99%. It is especially dangerous to rely only on it if you:

• 🎮 Install games/applications from third-party sources (for example, APKMirror or RuTracker)
• 💳 Use mobile banking or cryptocurrency wallets
• 📶 Connect to public Wi-Fi (in cafes, airports, hotels)

⚠️ Attention: In 2026, hackers actively exploited a vulnerability in Android Accessibility Servicethat allowed them to bypass Play Protect. Victims were infected through fake updates for WhatsApp and Telegram.

2. TOP 7 free antiviruses for Android: comparison table

We have selected antiviruses with a rating of at least 4.5 in Google Play, without critical data leaks in the past and with proven effectiveness in independent tests:

Antivirus	Threat detection (%)	Impact on battery	Additional functions	Cons
Bitdefender Mobile Security	99.8%	Low	VPN (200 MB/day), data leak scanner, website blocker	Limit VPN traffic, no Russian language in the free version
Avira Antivirus	99.5%	Average	Memory optimizer, call blocker, Wi-Fi checker	Advertising in the interface, sometimes slows down on weak smartphones
Kaspersky Mobile	99.9%	Low	Anti-phishing, payment protection, vulnerability scanner	Account linking Kaspersky, limitation of some functions without registration
Malwarebytes	98.7%	Minimal	Adware scanner, unwanted call blocker	No real protection (on-demand scanning only), few additional features
Avast Mobile Security	99.2%	High	VPN, garbage cleaning, photo protection	Aggressive advertising, in the past there were scandals with the sale of user data

For most users, the optimal choice is Bitdefender or KasperskyThey show the best results in tests and minimally load the system. Avira and Avast are suitable if you need additional utilities (for example, clearing cache or VPN), but be prepared for advertising.

3. Bitdefender Mobile Security: the best balance of protection and performance

Bitdefender is the only antivirus in our rating that received 100% in AV-Test (June 2026) its main advantages:

• 🛡️ Real protection in the background (not only on-demand scanning)
• 🔒 VPN on 200 MB/day (enough for secure surfing on public networks)
• 📊 Data leak scanner (checks whether your logins/passwords have been leaked to the darknet)
• 📱 Minimal impact on the battery (according to tests AV-Comparatives, the discharge increases by only 3-5%)

Of the minuses - no Russian. language in the free version (but the interface is intuitive) and VPN traffic limitation Also Bitdefender does not block ads in the browser, unlike some competitors.

How to set up for maximum protection:

Enable Real protection in settings|Activate Data leak scanner and link your email|Add banking applications to Protected applications|Disable Notifications about securityif they are annoying-->

If you need a VPN without restrictions, you can buy a premium version (about 1500 ₽/year), but for most tasks the free plan is enough.

4. Kaspersky Mobile: the most reliable protection against phishing

Kaspersky Mobile Antivirus is the only solution in our rating that blocks real-time phishing siteseven if you follow a link from an SMS or instant messenger. This is especially important for users of mobile banks: according to Group-IB, in 2026, 40% of thefts of funds from accounts occurred through phishing.

Other advantages:

• 🔍 Checking system vulnerabilities (for example, outdated versions Android or unsafe settings)
• 💳 Payment protection (blocks substitution of banking applications)
• 📵 Antispam for calls and SMS (works even without the Internet)

The main drawback is mandatory registration (without an account Kaspersky some of the functions will be blocked). Also, the free version does not have VPN and password managerwhich are in the premium version.

⚠️ Attention: In 2022 Kaspersky has been sanctioned in some countries due to ties to Russia. However, independent tests confirm that its products do not transfer user data to third parties. If this is important to you, select Bitdefender.

How to check if Kaspersky is blocking legitimate sites?

Sometimes anti-phishing Kaspersky can mistakenly block safe resources. To add a site to exceptions:

1. Open Kaspersky and go to Settings → Web Antivirus
2. Select Exceptions and add the site URL
3. If the problem persists, disable HTTPS check (but this will reduce protection)

5. Avira Antivirus: the best choice for weak smartphones?

Avira is often recommended as a “light” antivirus, but this is not entirely true. Yes, it consumes less memory than Avastbut on older devices (for example, with 2 GB RAM) it may slow down due to background checks. But it has useful extras:

• 🧹 Junk cleaning (removes cache, temporary files)
• 📞 Blocker calls (filters spam and scammers)
• 🔌 Checking Wi-Fi networks (notifies about dangerous access points)

Main problem Avira — advertising. It appears not only in the interface, but also in notifications. For example, you may receive a push with an offer to buy premium, even if you haven’t scanned anything.

Tip: If you only need an antivirus without the bells and whistles, after installation, disable it in the settings:

Avira → Settings → Additional features → Disable "Optimizer", "VPN", "Call Blocker"

This will reduce the load on the system and the amount of advertising.

6. Malwarebytes: a minimalistic scanner without background protection

Malwarebytes is fundamentally different from other antiviruses in this rating: it does not work in the background. That is, it does not scan new files automatically, but only at your request. This is a plus and a minus at the same time:

Advantages:

• ⚡ No load on the battery (does not hang in processes)
• 🎯 Specializes in adware (intrusive advertising in applications)
• 🆓 No unnecessary water and premium subscriptions

Disadvantages:

• 🚫 Does not protect in real life time (you can miss a new threat)
• 🛑 No automatic database updates (must be launched manually)
• 🔍 Does not check links and Wi-Fi

Malwarebytes suitable if you:

• 📥 Rarely download files from unverified sources
• 🔋 Want to save battery power
• 🎮 Play mobile games (some antiviruses conflict with games)

7. Avast Mobile Security: powerful, but with a dubious reputation

Avast is one of the most functional antiviruses in the free segment: it has VPN, and garbage cleaning, and photo protection (encryption of personal pictures). But it has two serious problems:

1. Data sales scandal (in 2020 it turned out that a subsidiary Avast sold information about users to third parties). After this, Avast promised to stop the practice, but trust was undermined.
2. Aggressive advertising (constant notifications about “critical threats”, which turn out to be an offer to buy premium).

If this doesn’t scare you, Avast offers:

• 🔒 VPN without traffic restrictions (but with a speed limit)
• 🛡️ Spying protection (blocks trackers in the browser)
• 📲 Scanning other devices (you can scan a PC or Mac through the same account)

⚠️ Attention: In 2026 Avast removed from Google Play in some countries due to violation of the privacy policy. Before installation, check if it is available in your region.

8. Which antivirus should you choose? Recommendations for scenarios

There is no universal answer - it all depends on your tasks. Here are our recommendations:

Your situation	Recommended antivirus	Alternative
I want maximum protection without unnecessary functions	Bitdefender Mobile Security	Kaspersky Mobile
I often connect to a public Wi-Fi	Kaspersky Mobile (anti-phishing) + VPN	Avast (if advertising doesn’t scare you)
I play mobile games, I need ease	Malwarebytes (on-demand scanning)	Avira (turn off background checks)
I need a spam call blocker	Avira Antivirus	Kaspersky Mobile
I use mobile banking	Kaspersky Mobile (payment protection)	Bitdefender (data leak scanner)

If you do not want to install an antivirus, at least:

Disable installation of applications from unknown sources (Settings → Security)|Do not connect to public Wi-Fi without a VPN|Regularly update Android and applications|Check application permissions before installation-->

FAQ: Frequently asked questions about free antiviruses for Android

🔍 Is it possible to do without an antivirus if I download applications only from Google Play?

Theoretically, yes, but risks remain. Google Play Protect blocks most obvious threats, but:

• 📦 Malicious applications sometimes slip through the official store (in 2026 Google deleted more than 100,000 such APKs).
• 🔗 Phishing links in SMS/messengers Play Protect not checks.
• 📡 Vulnerabilities in firmware or browser can be exploited without installing software.

If you do not store important data on your phone (banking applications, crypto wallets), you can do without an antivirus. In other cases, it is better to install at least Malwarebytes for periodic checks.

⚡ How does the antivirus affect performance and battery?

Depends on the solution:

• Bitdefender i Kaspersky: minimal impact (discharge increases by 3-5%).
• Avast i Avira: can slow down weak smartphones (especially when scanning in the background).
• Malwarebytes: does not affect the battery (works only when requested).

Tip: If you notice that your phone has started to slow down after installing the antivirus:

1. Disable background protection (if any).
2. Add frequently used applications to exceptions.
3. Try another antivirus (for example, replace Avast on Bitdefender).

🛡️ How to check if the antivirus is working?

You can test it using a harmless test virus:

1. Download the file EICAR (this is not a real virus, but a test file).
2. Try to open it. A good antivirus should block the file right away.
3. If the antivirus does not respond, delete it and select another one.

Also check:

• Are virus databases updated (go to your antivirus settings).
• Does real-time protection work (is the option enabled Real protection or Auto scanning).

📱 Is it possible to use two antiviruses at the same time?

Not recommended. Two antiviruses will:

• 🔄 Conflict with each other (can lead to crashes).
• 📉 Overload the system and drain the battery.
• ⚠️ Give false positives (block safe files).

Exception: can be combined Malwarebytes (for manual checks) with another antivirus disabling real protection in it. But this makes sense only for experienced users.

🔄 Do you need to pay for the premium version?

In most cases noFree versions of top antiviruses (Bitdefender, Kaspersky) provide basic protection against viruses and phishing. Premium gives:

• 🌐 VPN without restrictions (free versions usually have a limit of 200-500 MB/day).
• 🔐 Additional features (password manager, protection) webcams).
• 📱 Priority support.

Paying for premium makes sense if:

• You often connect to public Wi-Fi and need a VPN without restrictions.
• Store critical data on your phone (for example, access to crypto wallets).
• Use functions that are only available in the paid version (for example, protection from surveillance in Avast).

For most users, the free version is enough Bitdefender or Kaspersky.