The 4 Best Antivirus Apps for Android in 2026
Your phone holds your banking, your photos and your whole life, and the attacks are no longer just viruses: SMS phishing, fake apps and WhatsApp scams. A good antivirus adds a layer of web protection and scanning that Android alone does not fully cover. In this guide we compare the 4 best antivirus apps for Android in 2026.
Top Antivirus and Security Apps for Your Phone
Android security apps that scan apps and files, block fraudulent websites and flag SMS scams, with both free and premium options.
Top pick
Bitdefender Mobile Security
Free (with purchases) · 10M+
Best technically
4.7
507K reviews
TopApps analysis
Bitdefender leads the independent lab tests time after time: top detection with minimal battery drain, plus alerts for SMS and WhatsApp scams.
Bitdefender wins independent lab tests (AV-TEST, AV-Comparatives) more often than any rival: top detection rates with barely any hit to battery life. It includes real-time web protection, scam alerts for SMS and WhatsApp, and a basic VPN. The pick for anyone who wants the strongest technical protection.
Pros
- Leader in independent lab tests
- Minimal impact on battery and performance
- Scam alerts for SMS and WhatsApp
Cons
- The free version is very basic
- A subscription is needed for almost everything
- VPN capped at 200 MB/day unless you pay extra
Avast Antivirus y Seguridad
Avast Software · Free (with purchases) · 100M+
Best free
4.6
7.3M reviews
TopApps analysis
Avast offers the most useful free tier: app scanning, web protection against phishing and Wi-Fi checks without paying anything.
Avast is one of the most popular free antivirus apps in the world, with app and file scanning, web protection against fake sites, a Wi-Fi security checker and PIN app locking. Its free version genuinely covers the basics, while premium adds a VPN and identity-theft protection. A mobile security classic.
Pros
- A free version that's genuinely useful
- Web protection against phishing
- Security scan for Wi-Fi networks
Cons
- Persistent ads in the free version
- Some features are little more than bait for premium
- Moderate battery drain
Norton 360: Seguridad Móvil
NortonLifeLock · Free (with purchases) · 50M+
Most complete suite
4.5
2.0M reviews
TopApps analysis
Norton 360 includes unlimited-data VPN and dark web monitoring as standard: everything others sell piece by piece, in a single package.
Norton 360 is the most complete security suite: antivirus, unlimited-data VPN included, dark web monitoring in case your details leak and alerts about unsafe Wi-Fi. It is paid (with a trial), but bundles as standard what others sell separately. The veteran security brand, adapted to mobile.
Pros
- Unlimited-data VPN included
- Dark web monitoring
- Complete suite: antivirus plus privacy
Cons
- No free version (trial only)
- More expensive than the competition
- Some features split across several apps
AVG Antivirus y Seguridad
AVG Mobile · Free (with purchases) · 100M+
Best anti-theft
4.6
7.8M reviews
TopApps analysis
AVG pairs the antivirus with full anti-theft features: locate a lost phone, trigger an alarm or wipe your data remotely.
AVG is a veteran free antivirus (now part of the Avast group) with virus scanning, web protection, app locking and anti-theft tools: locate your phone, set off an alarm or wipe your data remotely. Its free plan is one of the most complete out there, using the same detection engine as Avast.
Pros
- Very complete free plan
- Anti-theft tools (locate, alarm, remote wipe)
- Same detection technology as Avast
Cons
- Ads in the free version
- Largely duplicates Avast (same group)
- Frequent promotional notifications
Frequently asked questions
Do you really need an antivirus on Android?
Android ships with Google Play Protect, which covers the basics. The real value of these apps today is less the classic 'virus' and more web protection: blocking phishing sites, spotting fraudulent texts (the familiar 'your parcel is on hold') and warning about apps with abusive permissions. If you only install from Google Play and never tap odd links, you can live without one; if you want a safety net, Bitdefender or Avast provide it with barely any battery cost.
What is the best free antivirus for Android?
Avast (and its sibling AVG, which shares the same engine): the free plan includes real malware scanning, web protection and Wi-Fi checks, not just a hook to sell the premium tier. The price you pay is the advertising, which is fairly insistent. Free Bitdefender is more limited (scanning only), although its paid version is the best on the market if you decide to invest.
Does an antivirus drain the battery?
All four in this guide are well optimised and their impact is small: labs such as AV-TEST also measure performance, and Bitdefender in particular stands out for minimal consumption. A deep scan of every app does use power, but it takes seconds and happens occasionally. Real-time protection is barely noticeable day to day. If your battery is suffering, check other apps first: the antivirus is rarely the culprit.
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