If you feel like your phone is slow, freezing, or receiving strange ads, it might be time to install an antivirus. In this article, you'll learn about best free antivirus for Android and iPhone in 2025, with a focus on protection, performance, and ease of use. All optimized for your time and safety.
Advantages of Using an Antivirus on Your Cell Phone
Real-time protection
Constantly monitors your apps and files, preventing threats before they cause damage.
Safe browsing
Blocks dangerous websites, phishing, and password theft attempts in real time.
Wi-Fi and network analysis
Checks if the Wi-Fi network is secure before you connect, protecting your data.
Performance optimization
Many antivirus programs include features to clean cache, RAM, and junk files.
Device tracking and blocking
In case of loss or theft, you can track, block and even erase the contents of your cell phone remotely.
Best Free Antivirus for Android and iPhone
Avast Mobile Security
Availability: Android and iOS
Features: Protection against viruses, malware, phishing, call blocking, basic VPN and Wi-Fi analysis.
Differentials: Simple interface, real-time protection, and extra tools like a photo vault and a junk cleaner.
AVG Antivirus Free
Availability: Android and iOS
Features: App scanning, Wi-Fi network scanning, device location, app blocking, and real-time antivirus.
Differentials: It's from the same company as Avast, but with a lighter interface and a focus on performance.
Kaspersky Mobile Security
Availability: Android and iOS
Features: Malware protection, call filtering, app protection, and limited free VPN.
Differentials: One of the most reliable antivirus systems in the world. It offers an excellent balance between protection and ease of use.
Bitdefender Antivirus Free
Availability: Android and iOS
Features: Fast scanning, active malware protection, secure browsing, and app blocking.
Differentials: Very lightweight, ideal for phones with low memory. No intrusive ads.
Avira Mobile Security
Availability: Android and iOS
Features: Security analysis, phishing protection, device location, remote lock, and photo vault.
Differentials: Excellent option for those looking for a lightweight alternative with good privacy options.
McAfee Mobile Security
Availability: Android and iOS
Features: Virus scan, Wi-Fi security, contact backup, device lock, and VPN.
Differentials: Modern interface, smart alerts, and good performance even on older phones.
Interesting Extra Features
- Integrated VPN: Some antivirus programs offer free VPNs with a daily limit, which is useful for more private browsing.
- Photo and file vault: Protect your images with password and encryption.
- Anti-theft: Allows you to track your phone in case of loss, block it or erase its data remotely.
- Spy App Detector: Identifies apps that try to access your camera, microphone, or data without permission.
- Privacy Reports: They show which applications access sensitive information and how often.
Common Care or Mistakes
- Install multiple antiviruses at the same time: This causes conflicts and can slow down your phone.
- Bypass app permissions: Always review what is being accessed by the antivirus and configure as needed.
- Rely only on antivirus: Avoid clicking on suspicious links, download apps only from official stores, and enable two-factor authentication.
- Keep your antivirus out of date: Keep the app updated to ensure the latest protection.
Interesting Alternatives
- Google Play Protect: Android's native system that automatically scans apps. Useful, but limited.
- Find My iPhone: It already comes with Apple devices and allows you to locate and lock your device.
- Manual cleanup and frequent backups: Deleting unknown files and keeping your data backed up in the cloud helps keep your system clean and secure.
- Paid antiviruses: If you need more advanced protection, paid versions offer ransomware protection, unlimited VPN, parental controls, and more.
Frequently Asked Questions (FAQ)
Yes. While Android and iOS systems have layers of security, a good antivirus adds extra protection against malicious websites, spy apps, and phishing attacks.
Bitdefender Antivirus Free is one of the lightest and most effective options for phones with little memory.
Some do, especially on Android. But there are ad-free options, like Bitdefender and Kaspersky, that focus on the user experience.
Modern antivirus programs are optimized and consume little battery. Still, it's important to review which permissions and features are active.
Yes. Some antivirus programs already come with a built-in VPN. If not, you can use an external VPN without any problems.
Conclusion
Installing a reliable antivirus is a simple way to protect your data, your privacy, and the proper functioning of your phone. Choose one of the recommended apps, keep your system updated, and avoid suspicious clicks. Try one of the best free antiviruses right now and make your phone more secure!