Antivirus
Top Companies in 2025
BullGuard vs dfndr security
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- Clean, easy-to-use interface
- Multi-platform compatibility
- Strong behavioral threat detection
- Built-in vulnerability scanner
- Free core protection (virus scanning, anti-phishing) with millions of users
- Comprehensive feature set (antivirus, anti-theft, cleaning, etc.) in one app
- Easy to use with decent malware detection scores (AV-TEST certified)
- Limited macOS and iOS features
- No free version
- Mixed results in zero-day tests
- Very ad-heavy in free mode
- Premium version is relatively expensive and Android-only
- Some features (battery booster, etc.) add little value
- No live customer support
Founded in 2002 and headquartered in the United Kingdom, BullGuard developed a reputation as a reliable antivirus provider with a focus on home users, families, and gamers. Their services stood out for blending strong, multi-layered threat detection with performance optimization features—most notably their Game Booster, which allowed users to enjoy lag-free gaming while staying protected. BullGuard’s security suite included essential tools like real-time protection, a configurable firewall, encrypted cloud backup, and a secure browser for financial transactions. Their interface was praised for being user-friendly, especially for non-technical users, and they performed consistently well in independent lab tests from AV-Test and AV-Comparatives. While macOS and mobile support was limited compared to Windows, BullGuard maintained a loyal customer base thanks to their practical features and straightforward approach to cybersecurity. In addition to strong malware defenses, they offered useful extras such as a vulnerability scanner, customizable parental controls, and system optimization tools, making them a well-rounded option. In 2021, they were acquired by NortonLifeLock, and by mid-2022, all BullGuard products and services were fully migrated to Norton’s ecosystem, ending standalone BullGuard offerings.
dfndr security, developed by Brazilian cybersecurity firm PSafe, is a well-known antivirus app for Android phones and tablets. Launched in the mid-2010s, they quickly gained popularity, amassing over 100 million downloads on Google Play thanks to their robust free offering. They aim to shield users from mobile threats, scan for malware, block phishing links, and alert users to potential scams, even within messaging apps. Over the years, PSafe has enriched dfndr security with extra features such as phone location tracking for lost devices, an app lock to protect privacy, and data breach monitoring to help users stay ahead of identity thieves. Users of dfndr security praise its ease of use, comprehensive toolkit, and free basic protection. The app’s interface is straightforward, making complex tasks like clearing junk files or securing the device accessible with a single tap. They also enjoy a strong reputation in the antivirus industry’s tests, having achieved perfect scores in some AV-TEST evaluations. However, the free version is known for frequent ads and notifications, which can be intrusive. Customer support is limited to email and online help, reflecting its focus on the mass Android market. Overall, dfndr security stands out as a solid, accessible option for Android users seeking free antivirus tools, though those wanting ad-free use or broader device support may find better value elsewhere.
- Security Rating : Good
- VPN : Separate add-on
- Price : Starts at $29.99/year for 1 device
- Customer Experience : Fair
- Firewall : Included
- Free Trial : 30 days
- Trustpilot Score : 1.3 out of 5
- Security Rating : Good
- VPN : Not included
- Price : Free version available (with ads); Pro plan $29.9/year; Ultra plan $69.9/year (approximately, for one device)
- Customer Experience : Fair
- Firewall : Not included
- Free Trial : 3 days
- Trustpilot Score : N/R
- Game Booster for lag-free gaming
- Encrypted cloud backup included
- Customizable parental controls
- Dedicated secure browser for finance
- Real-time scam protection for WhatsApp/SMS messaging specifically
- Built-in identity theft monitoring for mobile
- One of the most downloaded antivirus apps globally (200M+ installs)
- Adware Removal
- Anti-Phishing
- Anti-Spam
- Anti-Theft
- Anti-Tracking
- Behavior Analysis
- Cloud Scanning
- Dark Web Scanning
- Dedicated Ransomware Protection
- E-mail Scan
- File Encryption
- Free Version
- ID Protection
- Intrusion Detection System (IDS)
- Malware Removal
- Mobile App
- On Demand Scan
- Real-Time Protection
- Spyware Removal
- Vulnerability Scanner
- Webcam Protection
- Adware Removal
- Anti-Phishing
- Anti-Spam
- Anti-Theft
- Anti-Tracking—Undisclosed
- Behavior Analysis—Undisclosed
- Cloud Scanning—Undisclosed
- Dark Web Scanning
- Dedicated Ransomware Protection
- E-mail Scan
- File Encryption
- Free Version
- ID Protection
- Intrusion Detection System (IDS)
- Malware Removal
- Mobile App
- On Demand Scan
- Real-Time Protection
- Spyware Removal
- Vulnerability Scanner
- Webcam Protection
- Boot Time Scans
- Browser Cleaner
- Disk Cleaner
- Junk Files Removal
- Software/Driver Updater
- Boot Time Scans—Undisclosed
- Browser Cleaner
- Disk Cleaner
- Junk Files Removal—Undisclosed
- Software/Driver Updater
- Cloud Storage Backup
- Live Updates
- Parental Control
- Password Manager
- Rescue Mode
- USB Rescue Toolkit
- USB Vaccination
- Cloud Storage Backup
- Live Updates
- Parental Control
- Password Manager
- Rescue Mode
- USB Rescue Toolkit
- USB Vaccination
- Android
- Browser Plugins
- ChromeOS
- Fire OS
- iOS
- Linux
- macOS
- Windows
- Android
- Browser Plugins
- ChromeOS
- Fire OS
- iOS
- Linux
- macOS
- Windows
- Community Forum
- FAQs
- Help Guides
- Live Chat
- Phone
- Social Media
- Ticket
- Community Forum
- FAQs
- Help Guides
- Live Chat
- Phone
- Social Media
- Ticket