Antivirus
Top Companies in 2025
dfndr security vs iolo
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- 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)
- Comprehensive system optimization tools
- User-friendly interface
- ioloVPN included for browsing privacy
- System Shield® with proactive malware scanning
- 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
- Slow full system scan speeds
- Only available on Windows
- Auto-renewal and billing transparency issues
- Upselling during customer support calls
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.
Founded in 2005 and headquartered in Los Angeles, California, iolo Technologies has established themselves as a trusted provider of antivirus and system optimization solutions. Their flagship product, System Mechanic, offers a combination of real-time malware protection and advanced performance tools, such as DeepClean and LiveBoost, designed to keep your PC running smoothly. In addition to security features like System Shield® and Malware Killer™, iolo also provides valuable privacy tools, including Privacy Guardian™ and ByePass™ Password Manager for secure password management. Known for their intuitive interface, iolo’s software includes automated maintenance features like ActiveCare® for hassle-free optimization. Customers have praised the effectiveness of iolo’s products, as well as the responsiveness and professionalism of their support team. However, some users have raised concerns about unexpected charges, upselling tactics, and issues with auto-renewals. iolo’s pricing plans are flexible, with options for multiple devices, making them an affordable choice for households. Despite some criticism, iolo offers a comprehensive all-in-one solution, combining security, privacy, and performance optimization.
- 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
- Security Rating : Good
- VPN : Included
- Price : Starts at $43.94/year
- Customer Experience : Good
- Firewall : Included
- Free Trial : 30 days
- Trustpilot Score : 4.1 out of 5
- 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)
- ByePass™ Password Manager for secure login storage
- Privacy Guardian™ automatically deletes tracking cookies
- DeepClean tool for thorough junk file removal
- Search and Recover tool for data retrieval
- 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
- 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
- Boot Time Scans—Undisclosed
- Browser Cleaner
- Disk Cleaner
- Junk Files Removal—Undisclosed
- Software/Driver Updater
- Boot Time Scans
- Browser Cleaner
- Disk Cleaner
- Junk Files Removal
- 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