In today’s digital landscape, the threat of scams and cyberattacks looms large, manifesting in various forms such as deceptive emails, fraudulent websites, and malicious software. As our reliance on technology grows, so does the necessity for robust antivirus solutions across all devices, including PCs, Macs, smartphones, and tablets. Keeping core operating systems updated is crucial, yet the integration of external antivirus programs can provide an additional layer of security, continuously scanning for potential threats in the background.
Modern antivirus software has evolved into comprehensive security suites, incorporating features such as VPNs, email protection, malware and ransomware defenses, password management, parental controls, and even dark web monitoring. However, users must navigate the delicate balance between feature-rich offerings and system performance. While the cost of these programs varies—often with enticing introductory rates that can double after the first year—it’s essential to consider the impact on device speed and usability. A lightweight antivirus solution that safeguards privacy without hindering performance is paramount.
Best antivirus software at a glance
- Best overall – Bitdefender Premium: From £49.99 per year, Bitdefender.com
- Best interface – Surfshark One: From £1.99 per month, Surfshark.com
- Best for beginners – Norton 360 Deluxe: From £29.99 per year, Norton.com
- Best basic option – Avira Free Security: Free, Avira.com
- Best free option – Avast One: Free, Avast.com
How I tested the best antivirus software
To evaluate the leading antivirus software, I installed each program on both a Windows laptop and a Mac, measuring installation times and the duration of initial scans. I assessed the impact of these scans on system performance, noting any lag or disruptions. User-friendliness was another key factor, particularly for free versions, which often prompt users to upgrade. Additionally, I consulted independent security testing labs to gauge the effectiveness of each package and analyzed their pricing structures, particularly the common practice of offering lower rates for the first year that subsequently increase significantly.
Bitdefender Premium
Rating: 4.5/5
Best: antivirus software overall
What we love: Strong performance, fully featured
Take note: Limited devices
Bitdefender Premium stands out for its exceptional performance, albeit at a higher price point than many competitors. The software boasts a comprehensive suite of features, including a VPN, password manager, anti-tracker, and robust scam protection. While the free version offers essential antivirus capabilities, it is limited to a single device. Installation is straightforward, though slightly more complex on Mac. Scans are efficient, demonstrating minimal impact on system performance, and the user-friendly interface enhances the overall experience.
Surfshark One
Rating: 4/5
Best: Antivirus software interface
What we love: Great-looking design
Take note: Missing some central features
Known primarily for its VPN services, Surfshark One also offers a compelling antivirus solution. The initial scan on a Mac took approximately 40 minutes, with negligible impact on performance. The interface is visually appealing and easy to navigate, complemented by helpful tips throughout the app. While the antivirus protection is solid, some features, such as parental controls, are absent, and users may find themselves wanting more advanced options.
Norton 360 Deluxe
Rating: 4/5
Best: Antivirus software for beginners
What we love: Excellent performance, light impact on system
Take note: Interface not as slick as some
Norton 360 Deluxe has earned its reputation as a reliable antivirus solution, featuring AI-powered scam protection and a smart firewall. The installation process is user-friendly, particularly for those new to antivirus software. While the interface may not be as polished as others, Norton consistently performs well in independent tests, ensuring users feel secure without sacrificing system speed.
Avira Free Security
Rating: 3/5
Best: basic antivirus software
What we love: Unbeatable price, good quality
Take note: Basic features, numerous upsell prompts
Avira Free Security offers a compelling free option, though it comes with limitations. The installation process is swift, and the initial scan is efficient. However, users may find themselves inundated with prompts to upgrade for additional features. While the free version provides essential protection, those seeking more comprehensive coverage may need to consider the paid options.
Avast One
Rating: 4/5
Best: Free software
What we love: Strong performance, multiple features, simple modular design for extras
Take note: Some features limited, insistent upgrade messages
Avast One has recently been revamped to offer a robust free antivirus solution with a modular design that allows users to customize their security needs. The installation process is quick, and the initial scan effectively identifies and resolves malware issues. However, users may encounter persistent prompts to upgrade for enhanced features, which could be a deterrent for some.
What is the best antivirus software?
Each of the antivirus packages reviewed here provides solid protection against cyber threats, with many offering free trials for users to explore before making a commitment. Bitdefender emerges as the top contender for overall effectiveness, while Surfshark impresses with its user-friendly interface and affordability. For those seeking free options, both Avira and Avast One deliver commendable performance, albeit with frequent upsell attempts.
Tested by: David Phelan
David Phelan is a tech expert with years of experience reviewing and reporting on the best tech and new releases spanning everything from Apple tech to the best phones on the market. David’s expertise, attention to detail, and the fact he’s constantly putting himself in the shoes of the consumer to find the best, most user-friendly tech, makes him perfectly positioned to test the best antivirus software.
Read more: Bitdefender review: A tech critic’s full verdict
