Malwarebytes highlights:
- Can work with other antivirus products
- System impact is well below average
- Compatible with Windows, Mac, iOS, Android, and Chromebook
- Offers a decent free edition
- Lightning-fast scans
Webroot highlights:
- Cloud-based malware detection and elimination
- Works with outdated devices and operating systems
- Fully supports Win XP 32 and Mac OS 10.7 lion
- Features an ever-growing malware database
- Compatible with the four major operating systems
- Competitive pricing (especially for long-term subscriptions)